CN213271908U - Multimedia projection equipment for non-screen image in elevator space - Google Patents
Multimedia projection equipment for non-screen image in elevator space Download PDFInfo
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- CN213271908U CN213271908U CN202020513560.8U CN202020513560U CN213271908U CN 213271908 U CN213271908 U CN 213271908U CN 202020513560 U CN202020513560 U CN 202020513560U CN 213271908 U CN213271908 U CN 213271908U
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Abstract
The application relates to a multimedia projection device for screen-free images in elevator space. The multimedia projection apparatus includes: the device comprises a mounting assembly, a shell, a projection unit, a controller and an operation state detection unit, wherein the projection unit, the controller and the operation state detection unit are arranged in the shell; the projection unit and the running state detection unit are both connected with the controller; a mounting assembly for securing the housing to a rear wall of the elevator car; the projection unit is used for projecting images to the upper part of the elevator door under the control of the controller; the running state detection unit is used for detecting running state information of the elevator car and sending the running state information to the controller; the controller is used for controlling the projection unit to start or stop playing the image according to the running state information of the elevator car. With the arrangement, diversified advertisement forms can be presented at the best position (elevator door side) in the elevator car, passengers getting on or off the elevator can not be influenced, and the practicability is high.
Description
Technical Field
The application relates to the technical field of miniature projectors, in particular to a multimedia projection device for screen-free images in an elevator space.
Background
With the continuous increase of economy and the continuous promotion of urbanization, high-rise buildings are more and more common in Chinese cities, elevators are necessary matching infrastructures for the high-rise buildings, and under the condition, elevator advertisements are developed along with the elevator advertisements.
At present, the traditional elevator car media comprise a frame or a transverse media of a plastic clapboard, which are generally displayed to customers in a paper media form, and the propaganda effect is poor; in addition, there is a format in which an advertisement video is cyclically played through a Liquid Crystal Display (LCD) or the like, but in the above-described format, the positions where the advertisements are displayed are generally on both the left and right sides of the car, and a diversified advertisement format cannot be presented at the best position (elevator door side) in the elevator car.
SUMMERY OF THE UTILITY MODEL
The application provides a multimedia projection equipment of no screen image in elevator space to solve present elevator advertisement and can not present the problem of pluralism advertisement in the best position in elevator car.
The above object of the present application is achieved by the following technical solutions:
the embodiment of the application provides a multimedia projection equipment of no screen image in elevator space, includes: the projection device comprises a mounting assembly, a shell, a projection unit, a controller and an operation state detection unit, wherein the projection unit, the controller and the operation state detection unit are arranged in the shell; the projection unit and the running state detection unit are both connected with the controller;
the mounting assembly for securing the housing to a rear wall of an elevator car;
the projection unit is used for projecting images to the upper part of the elevator door under the control of the controller;
the running state detection unit is used for detecting running state information of the elevator car and sending the running state information to the controller;
and the controller is used for controlling the projection unit to start or stop playing the image according to the running state information of the elevator car.
Optionally, the running state detection unit includes a gravity detection unit, and the gravity detection unit is configured to obtain acceleration information;
the controller is used for determining that the elevator is in an operation state or a stop state according to the acceleration information, further controlling the projection unit to play the image when the elevator is in the operation state, and controlling the projection unit to stop playing the image when the elevator is in the stop state.
Optionally, the operating state detecting unit further includes an infrared detecting unit, and the infrared detecting unit is configured to acquire distance information;
the controller is used for determining that the elevator door is in an opening state or a closing state according to the distance information, further controlling the projection unit to play the image when the elevator door is in the closing state and the elevator is in the running state, and controlling the projection unit to stop playing the image when the elevator is in other running states.
Optionally, the mounting assembly includes a fixing seat, a rotating shaft connecting rod and a base;
the fixed seat is used for being connected with the shell, and the base is used for being fixed on the rear wall of the elevator car;
the fixing base with the base all contains the fixed orifices, the rotation axis connecting rod is used for through the fixing base with the fixed orifices of base couples together the two, and through the rotation axis connecting rod can adjust the position that projection unit throws the image.
Optionally, the housing is of a cylindrical structure, so that the heat dissipation area is increased.
Optionally, the projection unit is a multifunctional projector for preventing virtual focus, the focusing part is connected with the output shaft by adopting a gear assembly to output power, and the power is transmitted by utilizing a gear to complete the focusing process, so that the picture is clear.
Optionally, the infrared detection unit includes a circuit board, a condenser lens, and an infrared transmitting tube and an infrared receiving tube connected to the circuit board; the infrared rays emitted by the infrared emission tube are emitted to the front after being adjusted by the condenser lens, and are received by the infrared receiving tube after being reflected by the elevator door, so that the distance can be determined according to the time difference between the infrared emission and the infrared receiving; the circuit board further comprises an infrared resistance value regulator which is used for regulating the maximum distance which can be reached by the infrared rays emitted by the infrared emission tube.
Optionally, the infrared detection unit is detachably connected with the housing, so that replacement and maintenance are facilitated.
Optionally, the apparatus further comprises a curtain disposed at an upper portion of the elevator door.
Optionally, the device further comprises a wireless communication module connected to the controller; the wireless communication module is used for carrying out wireless communication with preset intelligent equipment.
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
according to the technical scheme, the projection equipment is arranged on the rear wall in the elevator car, so that the advertisement image can be projected on the upper portion of the elevator door, meanwhile, the elevator running state detection unit is arranged in the projection equipment, and the detection information is received through the internal controller to be analyzed, judged and controlled, so that the advertisement image can be prevented from being projected on a pedestrian outside the elevator when the elevator door is opened. With the arrangement, diversified advertisement forms can be presented at the best position (the elevator door side) in the elevator car, and influence on pedestrians outside the elevator and passengers getting on or off the elevator is avoided, so that the elevator has high practicability.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Fig. 1 is a schematic structural diagram of a multimedia projection apparatus for screenless images in an elevator space according to an embodiment of the present application;
fig. 2 is a schematic diagram illustrating an internal circuit connection relationship of a multimedia projection apparatus for displaying a screenless image in an elevator space according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of an infrared detection unit according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram illustrating a connection relationship of an internal circuit of an infrared detection unit according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a multimedia projection apparatus for screenless images in an elevator space according to another embodiment of the present application;
FIG. 6 is a schematic structural diagram of a mounting assembly according to an embodiment of the present disclosure;
fig. 7 is a schematic circuit structure diagram of a gravity detection unit according to an embodiment of the present disclosure;
fig. 8 is a schematic view of an installation position of a multimedia projection apparatus for a screenless image in an elevator space in an elevator according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
Examples
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a multimedia projection apparatus for a screenless image in an elevator space according to an embodiment of the present application, and fig. 2 is a schematic internal circuit connection relationship diagram of the multimedia projection apparatus for a screenless image in an elevator space according to an embodiment of the present application.
As shown in fig. 1 and 2, the multimedia projection apparatus includes: the installation component 1, the shell 2, the projection unit 3 arranged in the shell 2, the controller 4 and the running state detection unit 5; the projection unit 3 and the running state detection unit 5 are both connected with the controller 4; the mounting assembly 1 is used for fixing the housing 2 to the rear wall of the elevator car; the projection unit 3 is used for projecting images to the upper part of the elevator door under the control of the controller 4; the running state detection unit 5 is used for detecting running state information of the elevator car and sending the running state information to the controller 4; the controller 4 is used for controlling the projection unit 3 to start or stop playing the images according to the running state information of the elevator car.
Specifically, since the projection position of the multimedia projection device is on the elevator door, the problem of image projection during the process of getting on and off the elevator by the user needs to be considered, that is, the image projection outside the elevator when the elevator door is opened needs to be avoided. Based on this, the present application provides the running state detecting unit 5 to detect the running state information of the elevator, so that the controller 4 can close the image when the elevator is stopped. The controller 4 may be a concurrent MT6328 processor or other similar processor, which is not limited in this application.
Further, the operation state detection unit 5 may be implemented by the gravity detection unit 51, that is, the acceleration information of the elevator car is detected by the sensor, so that the controller 4 may determine that the elevator is in an operation state or a stop state according to the acceleration information, and further control the projection unit 3 to play the image when the elevator is in the operation state, and control the projection unit 3 to stop playing the image when the elevator is in the stop state. It should be noted that, because the acceleration parameters of the elevator in different application scenarios are different (related to factors such as the structure of the elevator itself and the height of the floor), the parameter settings in the detection process need to be adaptively adjusted in practical application. In some embodiments, the gravity sensing unit may select model MMA8452Q, KXTIK, LIS3DH, or ADXL346, or other similar products, without limitation. Further, a circuit configuration of a gravity detecting unit is shown in fig. 7.
In addition, in order to avoid the erroneous judgment of the gravity detection unit 51, the operation state detection unit 5 may further include an infrared detection unit 52, and the infrared detection unit 52 is configured to acquire distance information, so that the controller 4 determines that the elevator door is in the open state or the closed state according to the distance information. With the arrangement, whether the elevator is in a stop state can be comprehensively judged through the running (up-down) state of the elevator and the opening and closing state of the elevator door, so that the projection unit 3 is controlled to play the image when the elevator door is in a closed state and the elevator is in the running (up-down) state, and the projection unit 3 is controlled to stop playing the image when the elevator is in other running states.
In some embodiments, please refer to fig. 3 and 4, in which fig. 3 is a schematic structural diagram of an infrared detection unit according to an embodiment of the present disclosure, and fig. 4 is a schematic connection relationship diagram of an internal circuit of an infrared detection unit according to an embodiment of the present disclosure. As shown in fig. 3 and 4, the infrared detection unit 52 may include a circuit board 521, a condenser lens 522, and an infrared emission tube 523 and an infrared receiving tube 524 connected to the circuit board 521, wherein the infrared emission tube 523 may adopt a commonly used 940 emission tube, that is, an infrared ray emitting in a wavelength band of 940nm, but the specific type is not limited; the working principle is that the infrared ray emitted by the infrared emission tube 523 is adjusted by the condenser lens 522 and then emitted to the front, and is reflected by the elevator door and then received by the infrared receiving tube 524, so that the distance can be determined according to the time difference between the infrared emission and the infrared receiving, and if the distance is consistent with the preset distance, the elevator door can be determined to be closed; when the elevator door is opened, the measured distance is greater than the preset distance (even the infrared receiving tube cannot receive infrared rays, so that the distance cannot be measured) because the reflection of the elevator door is not generated. Further, in order to avoid the influence of the emitted infrared rays on pedestrians outside the elevator, the circuit board 521 may further include an infrared resistance value adjuster for adjusting the power of the infrared emission tube 523, so as to adjust the maximum distance that the infrared rays emitted by the infrared emission tube 523 can reach, and ensure that the infrared rays do not irradiate the outside of the elevator as much as possible.
In some embodiments, in order to solve the problem that the infrared detection unit 52 may be detachably connected (e.g., screwed) to the housing 2, considering that the infrared emission tube (which may be an LED lamp generally) has a certain lifespan and the infrared lamp is prone to be weakened when used for a long time, the maintenance personnel may replace the infrared detection unit 52 in the elevator on site when light is attenuated in the red, thereby greatly improving the lifespan of the projection device.
In addition, in some embodiments, please refer to fig. 5 and fig. 6, fig. 5 is a schematic structural diagram of a multimedia projection apparatus for non-screen images in an elevator space according to another embodiment of the present application, and fig. 6 is a schematic structural diagram of a mounting assembly according to an embodiment of the present application. As shown in fig. 5 and 6, the mounting assembly 1 includes a fixing base 11, a rotation axis connecting rod 12 and a base 13; the fixed seat 11 is used for being connected with the shell 2, and the base 13 is used for being fixed on the back wall of the elevator car; fixing base 11 and base 13 all contain the fixed orifices, and rotation axis connecting rod 12 is used for connecting the two through the fixed orifices of fixing base 11 and base 13 to can adjust the position that projection unit 3 throws the image through rotation axis connecting rod 12, specifically, can realize through rotating rotation axis connecting rod 12 and fixed. In addition, in practical use, the base 13 can be fixed at a suitable position of the back wall of the elevator car by means of non-destructive glue, for example, the base is installed at the position shown in fig. 8, and the projected image position should be as close to the top of the elevator door as possible, so as to avoid affecting users in the elevator.
When the projection equipment is installed, parameters such as picture size, brightness, sound and saturation can be adjusted through the special APP so as to adapt to the sizes and environments of different elevator doors.
In addition, considering that the projection equipment can generate more heat inside when being used for a long time, in order to prolong the service life of the equipment, the high-heat generating components are made of high-temperature resistant materials of military industry level, the shell 2 is made of one-level fireproof materials, and the appearance of the shell 2 can be designed into a cylindrical structure so as to increase the heat dissipation area. On the other hand, the definition of the projection device is 720P and 250 lumens, and the design scheme ensures the definition and the temperature control of the device within a reasonable range.
In some embodiments, the projection device further comprises a curtain arranged at the upper part of the elevator door, and the curtain is arranged to be tightly attached to the elevator door. The screen can adopt PET film using American and Japanese technologies, thereby breaking through the visual effect of high visual angle of a high-gain screen and realizing high brightness and full-width 180-degree visual angle.
In some embodiments, the projection unit 3 is a multifunctional projector for preventing virtual focus, and the focusing part of the projector adopts a gear assembly to be connected with an output shaft to output power, and the power is transmitted by using the gear to complete the focusing process, so that the picture is clear. In practice, a projector device of patent No. CN209417506U may be used.
In addition, in some embodiments, the projection device further includes a wireless communication module connected to the controller 4, for performing wireless communication with a preset smart device. The wireless communication module can be a 4G module of model EC25PCIE or other similar internet of things module.
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
according to the technical scheme, the projection equipment is arranged on the rear wall in the elevator car, so that the advertisement image can be projected on the upper portion of the elevator door, meanwhile, the elevator running state detection unit is arranged in the projection equipment, and the detection information is received through the internal controller to be analyzed, judged and controlled, so that the advertisement image can be prevented from being projected on a passenger outside the elevator when the elevator door is opened. With the arrangement, diversified advertisement forms can be presented at the best position (elevator door side) in the elevator car, passengers getting on or off the elevator can not be influenced, and the practicability is high.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present application, the meaning of "a plurality" means at least two unless otherwise specified.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (10)
1. A multimedia projection equipment of no screen image in elevator space, characterized by that includes: the projection device comprises a mounting assembly, a shell, a projection unit, a controller and an operation state detection unit, wherein the projection unit, the controller and the operation state detection unit are arranged in the shell; the projection unit and the running state detection unit are both connected with the controller;
the mounting assembly for securing the housing to a rear wall of an elevator car;
the projection unit is used for projecting images to the upper part of the elevator door under the control of the controller;
the running state detection unit is used for detecting running state information of the elevator car and sending the running state information to the controller;
and the controller is used for controlling the projection unit to start or stop playing the image according to the running state information of the elevator car.
2. The apparatus according to claim 1, wherein the operating state detecting unit includes a gravity detecting unit for acquiring acceleration information;
the controller is used for determining that the elevator is in an operation state or a stop state according to the acceleration information, further controlling the projection unit to play the image when the elevator is in the operation state, and controlling the projection unit to stop playing the image when the elevator is in the stop state.
3. The apparatus according to claim 2, wherein the operating state detecting unit further comprises an infrared detecting unit for acquiring distance information;
the controller is used for determining that the elevator door is in an opening state or a closing state according to the distance information, and then controlling the projection unit to play the image when the elevator door is in the closing state and the elevator is in the running state.
4. The apparatus of claim 1, wherein the mounting assembly comprises a fixed base, a rotating shaft connecting rod and a base;
the fixed seat is used for being connected with the shell, and the base is used for being fixed on the rear wall of the elevator car;
the fixing base with the base all contains the fixed orifices, the rotation axis connecting rod is used for through the fixing base with the fixed orifices of base couples together the two, and through the rotation axis connecting rod can adjust the position that projection unit throws the image.
5. The apparatus of claim 1, wherein the housing is a cylindrical structure to increase a heat dissipation area.
6. The apparatus of claim 1, wherein the projection unit is a multi-function projector for preventing a virtual focus, the focus adjusting part is connected to the output shaft using a gear assembly to output power, and the power is transmitted using the gear assembly to perform a focus adjusting process, thereby making a picture clear.
7. The apparatus according to claim 3, wherein the infrared detection unit comprises a circuit board, a condenser lens, and an infrared emission tube and an infrared reception tube connected to the circuit board; the infrared rays emitted by the infrared emission tube are emitted to the front after being adjusted by the condenser lens, and are received by the infrared receiving tube after being reflected by the elevator door, so that the distance can be determined according to the time difference between the infrared emission and the infrared receiving; the circuit board further comprises an infrared resistance value regulator which is used for regulating the maximum distance which can be reached by the infrared rays emitted by the infrared emission tube.
8. The apparatus of claim 3, wherein the infrared detection unit is detachably connected to the housing to facilitate replacement and maintenance.
9. The apparatus of claim 1, further comprising a curtain disposed at an upper portion of the elevator door.
10. The apparatus of any of claims 1-9, further comprising a wireless communication module coupled to the controller; the wireless communication module is used for carrying out wireless communication with preset intelligent equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020513560.8U CN213271908U (en) | 2020-04-09 | 2020-04-09 | Multimedia projection equipment for non-screen image in elevator space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020513560.8U CN213271908U (en) | 2020-04-09 | 2020-04-09 | Multimedia projection equipment for non-screen image in elevator space |
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| Publication Number | Publication Date |
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| CN213271908U true CN213271908U (en) | 2021-05-25 |
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| CN202020513560.8U Active CN213271908U (en) | 2020-04-09 | 2020-04-09 | Multimedia projection equipment for non-screen image in elevator space |
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- 2020-04-09 CN CN202020513560.8U patent/CN213271908U/en active Active
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