CN209838248U - Remote control operation classroom roller shutter system - Google Patents

Abstract

A classroom roller shutter system operated by remote control comprises a remote controller and a plurality of remote control signal receivers, wherein all roller shutters with the same application attribute on the same side in a room are started to operate by the same group of remote control instructions or are determined to hover at any non-limiting position; the rolling curtain groups with different application attributes on the same side in the room are started to operate by different remote control signal instruction groups or the same remote control signal instruction group or are determined to hover at any non-limiting position. The electric roller shutter system is simple and convenient to operate in a remote control mode and simple to install and construct.

Description

Remote control operation classroom roller shutter system

Technical Field

The utility model relates to a roll up curtain cluster remote control, a classroom roll curtain system of remote control operation promptly.

Background

An electric screen for a conference is often installed in a conference room or the like of a general organization. It is a common situation that the electric screen is operated by remote control, and the remote control system comprises a signal remote controller and a signal receiver which are matched. The structural model of the motorized roller shades can be similar to that of existing motorized screens, in view of the lower cost that can be achieved.

For single-layer and double-layer electric roller blinds for light reduction and/or sun shading and vision blocking of windows in classrooms of schools, a Chinese patent CN204511266U (classroom rolling and hanging device system started by a cluster) provides a cluster operation mode based on a wire connection switch group and a cluster operation mode based on a plurality of relays and computer program commands, and pre-specified curtain cloth (upper and lower) limit positions are automatically obtained by means of an operation limit position closing mechanism carried by each electric roller blind. Because the roller shutter product is attached to the wall surface in a classroom, the switch box and the teaching computer which are used as the operation control device are usually fixedly arranged on a platform, the electric connecting wire head arranged between the wall surface and the platform is frequently required to be high, the construction difficulty is large, the teaching time interval needs to be avoided in the construction, the dead time of an installer at a client place is long, and the installation cost is high.

In classroom informatization teaching, the screen display effect is negatively affected and even seriously weakened by the light collection quantity of windows in the generally clear weather, so that the light reduction curtain groups are usually arranged on the windows on the left side and the right side of a classroom, and the indoor light quantity is properly displayed in a clear screen on the premise of not affecting the eyesight health of students. In addition, for students in seats near the south side window of a classroom, strong direct sunlight may occur before and after summer; when the classroom has east and west windows, strong direct sunlight may be respectively emitted in the morning and afternoon; in addition, people outside the window can visit the room to disturb the study of students, so the arrangement of the sunshade and vision-blocking curtains (groups) in the classroom is reasonable, but the sunshade and vision-blocking can be the same curtain.

Disclosure of Invention

The utility model aims at providing an electronic book curtain system of rolling up of remote control operation to serve school's classroom teaching.

The utility model discloses technical scheme: the utility model provides a remote control operation's classroom rolls up curtain system, includes a plurality of individual layers that are used for falling the light electronic roll of curtain and/or fall a plurality of double-deck electronic roll of curtain that light and sunshade are obstructed, and every electronic roll of curtain product has extreme position automatic shutdown mechanism, its characterized in that: the remote control device also comprises a plurality of groups of remote controllers with ascending, descending and middle hovering instructions and remote control signal receivers matched with the remote controllers, each remote control signal receiver is electrically connected with at least one rolling curtain group, and the rolling curtain groups with the same application attribute on the same side in a room are started to operate or determined to hover at a non-limit position by the same group of remote control signal instructions.

The rolling curtain groups with the same application attribute on different sides in the room are instructed to start operation or decide to hover at a non-limit position by the same group of remote control signals.

The rolling curtain groups with different application attributes on the same side in the room are started to operate by different remote control signal instruction groups or the same remote control signal instruction group or are determined to hover at a non-limit position.

The outer end of the roller blind product closest to the platform in one roller blind group with the same application attribute is fixed with or the inner end thereof is sealed with a remote control signal receiver electrically connected with the roller blind of the group.

The instructions of ascending, descending and hovering at any middle position of the remote controller do not exceed 4 groups at most.

All the light-reducing curtains on the same side (the left side or the right side of the platform) in the room are rolling curtain groups with the same application attribute, all the sun-shading and vision-blocking curtains on the same side in the room are rolling curtain groups with the same application attribute, and the operation of each rolling curtain in each group is controlled by the same group of remote control signal instructions. The rolling curtain groups with the same application attributes can be arranged on the left side and the right side of the room simultaneously according to requirements, such as a light reducing curtain group common in a classroom; the rolling curtain groups with different application attributes on the same side in the room can be started to operate according to different remote control signal instructions or the same remote control signal instruction.

By means of the classroom roller shutter system remotely operated by the design, the roller shutters with the same application attribute on any same side can be started to operate by the same group of remote control signals or hover at any non-limiting position; in the case of 1-2 different application attribute roller blind groups on the left and right sides of the room, the operation is started by no more than 4 groups of remote control signals at most or the decision is made to hover at any non-limiting position. The remote control system of the roller shutter cluster is reliable in application and simple and convenient to operate, and time waste of teachers and students in class is reduced; all the electric connecting wires are only distributed on the vertical surface of the indoor wall, so that the installation difficulty of a product system is reduced.

Drawings

FIG. 1 is a schematic diagram of the layout of the relevant elements in the common classroom of the middle, east and south China.

Fig. 2a is a schematic diagram of a remote control operation panel that can be applied to fig. 8a-h and 8k, and fig. 2b is a schematic diagram of a remote control operation panel that can be applied to fig. 8 i.

Fig. 3 is a circuit diagram of a remote control signal receiver connected to a single motorized roller shade.

Fig. 4 is a schematic view of the internal basic structure of a classroom electric roller shutter.

FIG. 5a is a simplified exploded view of the automatic curtain operating limit position shut-off mechanism at the left end of FIG. 4, and FIG. 5b is a simplified exploded view of the operating elements and the electrical transmission system of FIG. 4.

Fig. 6 is a schematic view of the access mode of each roller blind in the same roller blind group to the remote control receiver.

Fig. 7a is a schematic diagram of a remotely operated classroom roller shade system and its electrical wiring layout, and fig. 7b-d are enlarged views of a portion M, N, R of fig. 7a, respectively.

Fig. 8a-k are schematic diagrams of remote control signal transmission for a cluster of differentiated classroom roller shades.

Detailed Description

Examples are given. Referring to fig. 1, the general layout of the classroom of the common school in china is as follows: a platform (13) is arranged at one indoor end, a blackboard is arranged on the wall surface close to the platform (13), a power socket (15) at a fixed position is provided at one end of the blackboard, 2-3 windows (14) are respectively arranged on the left wall surface and the right wall surface of the platform (13) generally so as to obtain indoor uniform lighting and sufficient ventilation of container places, and a front door (11) and a rear door (12) are arranged at two ends of one side wall surface of the platform (13). In the middle, east and south regions of China, the most common classroom orientation is in the east-west direction, namely, a corridor is generally positioned at the south side, windows are arranged at the south side and the north side of the classroom, and sunlight is emitted indoors through the south side window (14) seasonally; of course, some classrooms are in the north-south direction, namely the windows (14) on the left side and the right side are in the east direction and the west direction, and the sunshine in the morning and in the afternoon is respectively directly radiated indoors from the windows (14) on the east side and the west side, and the classrooms in the directions have relatively more cities with limited land use.

Fig. 2a and 2b show different remote control (51, 52) operation panels, on which different sets of "up", "stop" and "down" keys are provided, and different sets of "up", "stop" and "down" keys are pressed to send out different digitally encoded command signals, the different key sets respectively correspond to different signal receivers (A, B, C, D in fig. 8a-k is distinguished), and fig. 2a and 2b respectively correspond to applications of not more than 2 and not more than 3 different remote control signal receivers.

Fig. 3 is a circuit diagram of the remote control signal receiver (a) connected to the electric single roller blind, wherein the power cord (3) (taking the ac power of the indoor socket (15)) supplies power to the remote control signal receiver (a), and the central line, the cord fabric ascending line and the cord fabric descending line led out from the receiver (a) are connected to the roller blind product (namely, connected to the three-core line a/b/c of the electric roller blind shown in fig. 4).

If the remote controllers (51, 52) send a 'descending' command, the cord fabric descending line of the signal receiver A is communicated with the central line, and the micro motor (61) rotates along the cord fabric descending direction; if the remote controllers (51, 52) send out a 'lifting' command, the cord fabric lifting line of the signal receiver A is communicated with the central line, and the micro motor (61) rotates along the cord fabric lifting direction; in both cases, if a "stop" command is sent from the remote controllers (51, 52), the signal receiver A cuts off the current and the micro-motor (61) stops rotating, i.e. the curtain stops ascending or stops descending at the current position.

Referring to fig. 4, 5a-b and in comparison to fig. 3: taking the electric single-layer roller shutter shown in fig. 4 as an example, a roller tube (62) with a load cord fabric is constructed in the electric single-layer roller shutter, two ends of the roller tube (62) are respectively inserted by a synchronous reversible micromotor output shaft (611) and a lead screw small shaft (63) in the cord fabric operation limit position automatic closing mechanism, the cord fabric operation limit position automatic closing mechanism is operated by electrically connecting three core wires (a/b/c), and the three core wires (a/b/c) are externally connected into 3 corresponding output interfaces (central line, cord fabric ascending line and cord fabric descending line) in a remote control signal receiver A; three-core wire (a/b/c) to the inner direction of the roller blind product: the core wire b (namely cord fabric ascending wire) and the core wire c (namely cord fabric descending wire) are respectively connected with 1 micro switch (65, 66) and then are connected with the synchronous reversible micro motor (61) together with the core wire a (namely central wire) directly starting from the remote control signal receiver A. If the remote controllers (51, 52) send out a 'descending' command, the current between the 'descending line' and the 'central line' of the receiver A is communicated, so that the micromotor (61) rotates, the roller pipe (62) loading the curtain rotates, and the curtain is continuously unfolded downwards; the rotation of the roller pipe (62) drives a small lead screw shaft (63) in the cord fabric operation limit position automatic shutdown mechanism to rotate, a nut pressing plate (64) sleeved on the small lead screw shaft (63) moves linearly along the small lead screw shaft (63) and finally presses a button of a micro switch (65) in front (at the right lower end of a figure 5 a) to cut off working current, the micro motor (61) stops rotating, and the cord fabric is completely unfolded at the moment; after that, if the remote controllers (51, 52) send 'ascending' instructions to the receiver A, the current between the 'ascending line' and the 'central line' is connected, the micro motor (61) then rotates in the opposite direction, the roller pipe (62) loading the curtain cloth rotates in the opposite direction, namely the curtain cloth is continuously rolled upwards, meanwhile, the roller pipe (62) drives the small screw shaft (63) in the automatic shutdown mechanism at the running limit position of the curtain cloth to rotate in the opposite direction, the nut pressing plate (64) travels in the opposite direction along the small screw shaft (63) and finally presses the button (661) of the micro switch (66) at the front (the left end in the figure 5 a) at the moment, so that the working current is cut off, the micro motor (61) stops rotating, and the curtain cloth is completely rolled at the moment. In the descending or ascending process of the curtain cloth, if the remote controllers (51 and 52) send a 'stop' command, the signal receiver A directly cuts off the working current, the micro motor (61) stops rotating, and the curtain cloth hovers at the current position.

See the left end of the lowest position section in fig. 5b and see the right position section in fig. 5 a: in the automatic shutdown mechanism at the curtain cloth running limit position, two microswitches (65, 66) which are respectively connected with 2 bottom rods (67) in a penetrating way are oppositely arranged at the front sides, and each microswitch is provided with 1 switch button (a button (661) can be seen from the front side of the microswitches (66)) and 2 pile sheets for wiring (pile sheets (651, 652) can be seen from the back side of the microswitches (65)). The specific connection relation between the core wire c and the microswitch (65) is as follows: the core wire c is connected into the pile sheet (651) and is led out from the pile sheet (652); the connection mode of the core wire b and the micro switch (66) is the same as the above. The nut pressing plate (64) which travels linearly along the small screw shaft (63) fully presses the button (661), so that the micro switch (66) is turned off, namely, the current is cut off, and the micro motor (61) stops rotating; similarly, the nut pressing plate (64) can close the micro switch (65) at the other end.

As is apparent from the comparison of fig. 4, the device shown in the right-hand side of fig. 5a is mounted in the steel frame shown in the left-hand side of fig. 5a via 3 support bottom rods (67), so that the curtain cloth operation limit position automatic shutdown mechanism with stable structure can be obtained.

From the above, the command of the remote controller (51, 52) can control the curtain cloth in the rolling curtain product to descend, ascend or hover at any position in the middle through the signal receiver A.

See fig. 6 in comparison to fig. 3-4 and fig. 5 a-b: fig. 6 is a schematic diagram of the access mode of each roller blind in a roller blind group with the same application attribute to the remote control signal receiver a, the power line (3) supplies power to the receiver a, and the three-core electric connecting wire (41) output from the receiver a is used for correspondingly accessing the center line, (curtain) ascending wire, (curtain) descending wire (namely, the three-core wire a/b/c in fig. 4) of each single-layer roller blind (21).

See fig. 7a against fig. 1 for background: fig. 7a is a schematic diagram of a remote-controlled classroom electric rolling curtain cluster and the layout of its electrical connection lines (assuming that the left side is the south side direction with direct sunlight before and after summer), a power line (3) is powered from a socket (15) and then connected to a remote control signal receiver a, and then a three-core electrical connection line (41) is connected to each subsequent single-layer rolling curtain (21), so as to form a light-reducing curtain group (the same application attribute of each product in the group is 'light reduction'). Similarly, the power line (3) supplies power to the remote control signal receivers B and C from the left side after the socket (15) gets electricity, and then the electric connecting line (42) is connected with each subsequent sunshade and vision-blocking curtain to form a sunshade and vision-blocking curtain group; the electric connection line (43) is connected with each subsequent light reducing curtain to form a light reducing curtain group. The sun-shading and vision-blocking curtain and the light-reducing curtain corresponding to each window on the left side jointly form a double-layer rolling curtain (22) product, the double-layer rolling curtain (22) product is formed by juxtaposing two independent single-layer curtains without electrical connection relation under an outer housing, and the two single-layer curtains participate in the operation of rolling curtain groups with different application properties (in the figure, the aforementioned figure 3 and the figure 6, the power line (3) refers to two core wires; and in the figures of the figure and the following figures 8a-k, the electrical connection wire (41/42/43/44) between each signal receiver (A/B/C/D) and each rolling curtain is a three-core wire).

Fig. 7a shows: the usual left and right 3 roller blind groups (at most) can complete the operation control of the whole system of the roller blind indoors by means of 3 groups of remote control signals (i.e. correspondingly at most 3 remote control signal receivers a/B/C) (see fig. 7a for partial enlargement, see fig. 7B-d), and the corresponding remote control panel (can) is shown in fig. 2B. It is evident that the power socket (15) in fig. 7a and the supply lines (3) leading therefrom to the left and right side roller blind products, all the electrical connection lines (41/42/43) between the single and double roller blinds (21, 22) are arranged on the interior wall facade.

Fig. 8a-k are schematic diagrams of remote control signal transmission modes of the classroom roll screen system, each diagram only focuses on the transmission mode of the remote control signal, and only shows the roll screen closest to the platform (13) and the signal receiver (a/B/C), and the connection situation of each roll screen and the signal receiver (a/B/C) can be understood by referring to fig. 7a and fig. 6. The following takes infrared signal remote control as an example:

fig. 8a shows the remote control in the relatively simplest case, in the case of a single-layer set of roller blinds (21) for light reduction on both sides of the classroom. The remote controller (51) operated by the lecturer points to the ends of the single-layer roller blinds (21, 21) nearest to the left side and the right side from the platform (13) (which is the most common situation, but not necessary), respectively, and sends signals, the remote control signals are received by a receiver A at the end of the single-layer roller blinds (21) (the dotted lines in the figure are signal path schematic, and the dotted lines in the figures are the same in meaning), so that all the single-layer roller blinds (21) on each side are lifted at the same time, lifted at the same time or hovered at the same time, and the cluster remote control operation of the left and right two light-reducing curtain groups is. Note that fig. 8a uses the same receiver a for the left and right side blind banks, i.e., only one set of remote command signals (down, stop, up) is used to complete all the operations of the left and right side blind banks in the classroom.

Fig. 8b is a view showing that the indoor side signal receiver a is omitted from fig. 8a, that is, the signal receiver a is installed at the end of the rolling blind product closest to the platform on the indoor side, when the signal of the remote controller (51) is transmitted from the platform (13) to the receiver a, the receiver a starts the left single-layer rolling blind (21) group through the electrical connection line (43) in the figure while starting the right single-layer rolling blind (21) group to operate, and the remote control operation requirement of the indoor rolling blind cluster is met like fig. 8 a.

Fig. 8c shows a single-layer roller blind (21) for lowering light on one side (right side in the figure), a double-layer roller blind (22) for lowering light and shading and blocking light on the other side (left side in the figure), a signal receiver (a/B/a) is arranged at the end of the roller blind closest to the platform (13) in each group of roller blinds, the signal receiver a is used for the group of the single-layer roller blind (21) for lowering light and the signal receiver a is used for the group of the single-layer roller blind for lowering light on the left side, and the signal receiver B is used for the group of the shading and blocking light in the double-layer roller blind (22) on the left. The execution mode and the function of each signal are similar to those of fig. 8b, wherein when the left and right light-reducing curtain groups are started, the command signal sent by the remote controller (51) needs to reach the left receiver A and the right receiver A respectively.

Fig. 8d shows the receiver a on the right side omitted from fig. 8c, i.e. the signal receiver a and the signal receiver B are respectively mounted on the end of the product closest to the platform of the double-layer roller shutter (22) on the indoor side. When a first group of remote control signals of the remote controller (51) are transmitted to the receiver A from the platform (13), the receiver A starts the operation of the left single-layer roller shutters (21) through the electric connecting wire (41) while starting the operation of the left single-layer roller shutters; a second set of remote control signals from the remote control (51) is transmitted from the platform (13) to the receiver B to activate the operation of the blind set in the double-layered roller blind (22).

Fig. 8e is a diagram opposite to fig. 8c, the receiver a of the left side light-reducing curtain group is removed, a first group of remote control signals of a remote controller (51) are transmitted from the platform (13) to the receiver a of the right side rolling curtain group, and the receiver a starts the operation of each rolling curtain of the left side light-reducing curtain group through an electric connecting wire (43) while starting the operation of the right side single-layer rolling curtain (21) group; a second group of remote control signals of the remote controller (51) are transmitted to the receiver B from the platform (13) to start each roller blind of the shading and vision-blocking curtain group in the left double-layer roller blind (22) to run.

Fig. 8f is a view compared with fig. 8e, in which the remote control signal receiver B on the left side of fig. 8e is replaced with a receiver a, that is, the receiver a is the same as the receiver a of the single-layer rolling curtain (21) for lowering light on the right side, because the infrared ray (signal) emitted by the remote controller has a certain directivity, the azimuth difference between the receiver a on the left side and the receiver a on the right side is very obvious when viewed from the position of the classroom platform (13), and the distance between the receiver a on the left side and the receiver a on the right side in the classroom is large, when the remote controller (51) points to the receiver a on the left side to send a signal, the signal does not start the receiver a on the right side, that is; when the remote controller (51) sends a signal to the right receiver A, the signal does not start the sunshade and vision-blocking curtain group connected with the left receiver A, and the single-layer roller shutter (21) used for indoor light reduction on the right side is started to run, and simultaneously, the light reduction curtain group in the double-layer roller shutter (22) on the left side is also started to run through the electric connecting wire (43). The above shows that: the operation of the groups of roller blinds with different application attributes on the same side of the room (e.g. left side of fig. 8 f) can be controlled by the same set of remote control signals.

Fig. 8g shows the situation that two sides of the classroom are double-layer roller blinds (22), that is, each roller blind product on each side comprises a light-reducing curtain and a sun-shading and vision-blocking curtain, a signal receiver a can be installed at the product end of the light-reducing curtain group on one side (right side in the figure) closest to the platform, and receivers B can be respectively installed at the product ends of the sun-shading and vision-blocking curtain groups on the left and right sides closest to the platform. When a first group of remote control signals of the remote controller (51) are transmitted to the right receiver A from the platform (13), the receiver A starts the left light-reducing curtain group through an electric connecting wire (44) while starting the right light-reducing curtain group, namely, the left light-reducing curtain group and the right light-reducing curtain group are started simultaneously. When a second group of remote control signals of the remote controller (51) are sent to the receiver B on one of the left side and the right side from the platform (13), the receiver B only starts the sunshade and vision-blocking curtain group on the side to run, namely the sunshade and vision-blocking curtain group on the other side is not started; if and only if the second group of remote control signals are continuously transmitted to the receivers B at the left side and the right side from the platform (13), the sunshade and vision-blocking curtain groups at the left side and the right side are both started. It should be noted that, if the sunlight is directly incident on the east window in the morning, it is not simultaneously directly incident on the west window, and if the sunlight is directly incident on the west window in the afternoon, it is not simultaneously directly incident on the east window, so there is little chance that the left and right side blinds are simultaneously used. However, even if one side needs shading and the other side needs to block vision at the same time, because the infrared remote control rays in the classroom space have better directivity and the spatial direction difference of the receivers B at the left side and the right side in the figure, the shading and vision blocking curtain groups at the two sides can be respectively or simultaneously started by using the same remote control signal group (the second group) and the same receiver (the receiver B), and various operation requirements of the rolling curtain product cluster under the situation of the figure are met.

The left and right sides of fig. 8g show 4 rolling curtain groups, and the 1 st rolling curtain in each group is connected with the subsequent rolling curtains by electric connecting lines (41/42/43/44).

Fig. 8h compares to fig. 8g, again with 4 roller blind groups with double roller blinds (22) on both sides in the classroom, 2 identical receivers a being arranged on the left and right and belonging to roller blind groups of different properties. Because the infrared signal sent by the remote controller (51) has better directivity and the position difference of the receivers A at the left side and the right side of the classroom is larger, when the remote controller (51) points to the receiver A at one side to send a signal, the signal can not cause the response of the receiver A at the other side, namely, the remote controller can only start one group of roller blinds at the side and start the operation of the roller blind group with the same attribute at the other side through the electric connecting wire (44 or 42).

Although the situation of fig. 8h is more extreme, its planned remote operation can still be implemented.

The situation of fig. 8i corresponds to the use of the remote control (52) shown in fig. 2 b. In fig. 8i, the shading and vision-blocking curtains on the left and right sides are respectively started by 2 different remote control signal receivers C and B, namely, two different groups of remote control signals on the remote controller (52) are respectively sent to the corresponding receivers C and B to realize the shading and vision-blocking curtain. The group 3 remote control signals are sent to the receiver a on the right side, which activates the group of right side light-reducing curtains via an electrical connection line (44) at the same time as the group of left side light-reducing curtains.

Fig. 8j shows 4 different signal receivers, which can be fully activated by a remote controller with 4 sets of different remote control signals (beyond those shown in fig. 2 a-b), and each set of remote control signals is transmitted to the corresponding receiver to activate the roller blind set connected to the receiver; different sets of remote control signals correspond to different sets of roller shades.

A typical simplified classroom cluster remote-controlled roller shade system is shown in fig. 8 k: the left side and the right side of the room are provided with single-layer electric roller shutter (21) groups. Two groups of signals of the remote controller (51) shown in fig. 2a are respectively matched with the signal receiver A and the signal receiver B, and when the indoor brightness needs to be reduced in screen teaching, the curtain cloth on the left side and the curtain cloth on the right side are respectively reduced; in the screen-free teaching, when only one side is used for shading or blocking vision, the light-reducing curtain cloth on the side is still lowered to be used for shading or blocking vision. It follows that the basic application can be achieved (although the effect is not entirely comparable to that of a double-layer roller blind (22)). When only one side of the rolling blind group in the room is used, compared with fig. 8a, the accidental signal starting of the rolling blind group at the other side can be completely avoided in the situation of fig. 8k, so that the remote control signal transmission of fig. 8k is more reliable, but the design of the remote controller (panel) of fig. 8a is extremely simple; when the rolling screen groups on both left and right sides of the room are used simultaneously, the remote controller operates the pole cylinder in the case of fig. 8b as compared with fig. 8b, but the wiring in the case of fig. 8k is more simplified.

It is also worth mentioning that:

in the design, an infrared remote control is generally selected, the function of the infrared remote control cannot exceed the outdoor (namely, the rolling curtain in an adjacent classroom cannot be started accidentally), and the appropriate limit of the intensity of the infrared signal is as follows: the signal transmission to one indoor left receiver or right receiver is reliably completed, and when the signal is reflected to the other indoor opposite side after being blocked by the wall surface, the same signal receiver is completely insufficient to start.

Whether 2, 3 or 4 groups of rolling curtain products are arranged on the left side and the right side of the room, as can be seen from the remote control process realized by figures 8a-h and 8k, only two groups of remote controllers (51) for remote control signal instructions are arranged (correspondingly, only 2 signal receivers A, B are arranged), and the control requirements of the operation of each rolling curtain group under each situation can be met, wherein in some specific modes, the linear direction of infrared rays is matched with the different directions of the receivers.

Clearly, the remote control signal is not limited to the infrared mode, but in the application of the present design, the premise is to reliably ensure that the signal cannot accidentally activate or interfere with the operation of the rolling shutter set in the adjacent classroom.

And the remote control signal receiver of each rolling curtain group can be packaged at the inner end part of the rolling curtain product closest to the platform. The 2 signal receivers in the double-layer roller blind can be designed in a combined manner.

The difference between the curtain cloth of the sunshade and vision-blocking curtain and the curtain cloth of the light-reducing curtain in the scheme can comprise: at least one surface of the curtain cloth of the light-reducing curtain is often sprayed with PVC powder and the like, so that the cloth surface is light-tight, but due to the inherent structure of the roller curtain product, the distance between the curtain cloth and the wall surface is necessarily several centimeters, and light leakage at the left side and the right side of the curtain cloth enters a room, so that the light-reducing curtain is generally only light-reducing. The curtain cloth of the sunshade and vision-blocking curtain can be semi-transparent and does not influence the air circulation, and the purposes of properly shielding strong direct sunlight and preventing persons outside the window from conveniently looking inwards are achieved.

The electric rolling curtain generally refers to a curtain with curtain cloth capable of being rolled up and unfolded downwards. The motorized roller shade referred to herein may include two structural modes: one is that a synchronous reversible micromotor (61) is used as shown in fig. 4, one end of a reel pipe (62) is inserted by an output shaft (611) of the synchronous reversible micromotor, the other end of the reel pipe (62) is inserted by a lead screw small shaft (63) of the extreme position automatic shutdown device, and the micromotor (61), the reel pipe (62) and the extreme position automatic shutdown mechanism which are connected left and right are contained in a housing; the second type is a roller blind product that uses a tubular motor and is placed inside the roller tube, with the curtain cloth hanging on the side of the roller tube. Although only the motorized roller shade of the first structural mode is shown in the drawings (fig. 4, 5a-b) of the present specification, the motorized roller shade system of the second structural mode operated by remote control still belongs to the application of the design solution.

The remote-control operation classroom electric roller shutter system reduces disturbance to classroom learning of students and waste of teaching time of teachers, and avoids the problem that manual operation of a plurality of students is needed for closing and opening curtains in classroom teaching. When the roller shutter is not used, the curtain cloth is fully rolled on the upper edge of the window, and the vision in the classroom is simpler.

Claims (5)

1. The utility model provides a remote control operation's classroom rolls up curtain system, includes a plurality of individual layers that are used for falling the light electronic roll of curtain and/or fall a plurality of double-deck electronic roll of curtain that light and sunshade are obstructed, and every electronic roll of curtain product has extreme position automatic shutdown mechanism, its characterized in that: the remote control device also comprises a plurality of groups of remote controllers with ascending, descending and middle hovering instructions and remote control signal receivers matched with the remote controllers, each remote control signal receiver is electrically connected with at least one rolling curtain group, and the rolling curtain groups with the same application attribute on the same side in a room are started to operate or determined to hover at a non-limit position by the same group of remote control signal instructions.

2. A remotely operated classroom roller shade system as defined in claim 1 wherein: the rolling curtain groups with the same application attribute on different sides in the room are instructed to start operation or decide to hover at a non-limit position by the same group of remote control signals.

3. A remotely operated classroom roller shade system as defined in claim 1 wherein: the rolling curtain groups with different application attributes on the same side in the room are started to operate by different remote control signal instruction groups or the same remote control signal instruction group or are determined to hover at a non-limit position.

4. A remotely operated classroom roller shade system as defined in claim 1 wherein: the outer end of the roller blind product closest to the platform in one roller blind group with the same application attribute is fixed with or the inner end thereof is sealed with a remote control signal receiver electrically connected with the roller blind of the group.

5. A remotely operated classroom roller shade system as defined in claim 1 wherein: the instructions of ascending, descending and hovering at any middle position of the remote controller do not exceed 4 groups at most.