Camera and TOF integrated module and projector

Abstract

According to the camera and TOF integrated module and the projector, the integrated module comprises a TOF module, a camera module, a driving module and a connecting module, the driving module is electrically connected with the TOF module and the camera module, and the driving module is electrically connected with the connecting module; and the connecting module is connected with external equipment by adopting any one of a USB (Universal Serial Bus) interface or an MIPI-CSI (Mobile Industry Processor Interface-Common System Interface). The camera module and the TOF module are connected with the driving module at the same time, and signals are transmitted to the connecting module through the driving module, so that communication with the outside is completed through one interface, and the product cost is saved. According to the projector adopting the integrated module, signal transmission is carried out between the internal main control module and the integrated module, a wire rod can be saved during internal installation, the cost is reduced, in addition, the original projector only provided with a USB interface or an MIPI-CSI interface does not need to change the design of a projector mainboard (adding an IIC interface) for additionally installing the TOF, the design cost is saved, and upgrading and development are more efficient.

Description

Technical Field

[0001] The present application relates to the technical field of projectors, and in particular to a camera and TOF integrated module and a projector. Background Art

[0002] With the development of intelligent and automated projectors, projectors are generally equipped with cameras for operations such as automatic focus, automatic keystone correction, automatic obstacle avoidance and automatic screen entry.

[0003] In recent years, TOF has begun to be used on projectors. TOF is the abbreviation of Time-of-Flight ranging sensor. Its Chinese name is long-distance time-of-flight ranging sensor. It is divided into single-point TOF and multi-point TOF. Single-point TOF can test the distance; multi-point TOF can test the angle between the projector and the screen.

[0004] As a new type of sensor device, TOF has high precision and fast response. When installed on a projector, it makes the focus and keystone correction of the projection more agile. Now more and more projector products have the demand to install TOF.

[0005] In order to add TOF to existing projectors, the design of the projector motherboard is changed, such as adding an IIC interface, which results in the camera and TOF requiring two interfaces for communication, increasing the cost of the product. Summary of the invention

[0006] The technical problem to be solved by the present application is that in order to add TOF to the existing projector, the design of the projector mainboard is changed, such as adding an IIC interface, which results in the need for two interfaces for the camera and TOF to communicate, thus increasing the cost of the product.

[0007] In order to solve the above problems, in order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a camera and TOF integrated module and a projector.

[0008] In a first aspect, the present invention discloses a camera and TOF integrated module, which includes a TOF module, a camera module, a driving module, and a connecting module, wherein the driving module is electrically connected to the TOF module and the camera module respectively, and the driving module is electrically connected to the connecting module;

[0009] The connection module uses either a USB interface or a MIPI-CSI interface to connect to external devices.

[0010] Preferably, a voltage stabilizing module is included, and the voltage stabilizing module is electrically connected to the driving module and the connecting module respectively.

[0011] Preferably, a storage module is included, and the storage module is electrically connected to the driving module.

[0012] Preferably, the driving module includes a first two-wire communication interface;

[0013] The TOF module includes a second two-wire communication interface, and the first two-wire communication interface is connected to the second two-wire communication interface.

[0014] Preferably, the driving module includes a first communication interface;

[0015] The camera module includes a second communication interface, and the first communication interface is connected to the second communication interface.

[0016] Preferably, an SCK signal and an SDA signal are transmitted between the first two-wire communication interface and the second two-wire communication interface.

[0017] Preferably, the driving module comprises a driving unit, and the driving unit is respectively connected to the first two-wire communication interface and the first communication interface.

[0018] Preferably, the TOF module, the camera module, the driving module and the connecting module are integrated into one circuit board.

[0019] In a second aspect, the present invention discloses a projector, which includes the above-mentioned camera and TOF integrated module.

[0020] Preferably, a main control module is included, and the connection module is electrically connected to the main control module.

[0021] The above technical solution provided by this application has the following advantages compared with the prior art:

[0022] The camera and TOF integrated module and projector provided by the present application, wherein, in the integrated module, the camera module and the TOF module are connected to the driving module at the same time, and the signal is transmitted to the connection module through the driving module, so as to achieve an interface to complete the communication with the outside world, saving the cost of the product. For the projector using the integrated module, the internal main control module and the integrated module are used for signal transmission, and a wire can be saved during the internal installation, reducing the cost. In addition, the projector originally only has a USB interface or a MIPI-CSI interface, and there is no need to change the projector motherboard design (adding an IIC interface) in order to install TOF, saving design costs and making upgrade development more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0025] Figure 1 A schematic diagram of the structure of a camera and TOF integrated module provided in this application;

[0026] Figure 2 A schematic diagram of the connection structure of a driving module, a TOF module, and a camera module of a camera and TOF integrated module provided in this application;

[0027] Figure 3 A circuit diagram of a driving module of a camera and TOF integrated module provided in this application;

[0028] Figure 4 A circuit diagram of a TOF module of a camera and TOF integrated module provided in this application;

[0029] Figure 5 A circuit diagram of a camera module of a camera and TOF integrated module provided in this application;

[0030] Figure 6 A circuit diagram of a voltage stabilizing module of a camera and TOF integrated module provided in this application;

[0031] Figure 7 A circuit diagram of a connection module for a camera and a TOF integrated module provided in this application;

[0032] Figure 8 A circuit diagram of a storage module of a camera and TOF integrated module provided in this application;

[0033] Fig. 9 A schematic diagram of the structure of a projector provided in this application.

[0034] Description of reference numerals:

[0035] 1. Camera and TOF integrated module;

[0036] 11. drive module; 111. drive unit; 112. first two-wire communication interface; 113. first communication interface;

[0037] 12. TOF module; 121. second two-wire communication interface;

[0038] 13. Camera module; 131. Second communication interface;

[0039] 14. Voltage stabilizing module;

[0040] 15. Connection module;

[0041] 16. Storage module;

[0042] 100. Projector; 2. Main control module. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0044] First, see Figure 1-8 The present invention discloses a camera and TOF integrated module 1, which includes a TOF module 12, a camera module 13, a driving module 11, a connecting module 15, a voltage stabilizing module 14, and a storage module 16. The driving module 11 is electrically connected to the TOF module 12 and the camera module 13, respectively, and the driving module 11 is electrically connected to the connecting module 15; the voltage stabilizing module 14 is electrically connected to the driving module 11 and the connecting module 15, respectively, and the storage module 16 is electrically connected to the driving module 11.

[0045] Specifically, the voltage stabilizing module 14 is used to power other modules in the module, converting the 5V power supply of the connection module 15 into 3.3V, and the storage module 16 is used to store the camera driver program so that the driver module 11 can implement the camera driver program. The driver module 11 is used to drive the camera. The camera module 13 includes a camera lens assembly. The driver module 11 drives the camera module 13 and the TOF module 12 respectively. The driver module 11 transmits signals with the outside of the module by transmitting signals with the connection module 15. It can be understood that the camera module 13 and the TOF module 12 need to be transmitted through the driver module 11 and the connection module 15 to transmit signals with the outside of the module.

[0046] It can be understood that in the integrated module, the camera module 13 and the TOF module 12 are simultaneously connected to the driving module 11, and the driving module 11 transmits signals to the connecting module 15, thereby achieving an interface to complete communication with the outside world, saving product costs.

[0047] Optionally, the connection module 15 uses a USB interface or a MIPI-CSI interface to connect to an external device. In this embodiment, the connection module 15 uses a USB interface, but the interface of the connection module 15 can select any of the above interfaces to connect to the outside according to actual conditions.

[0048] Optionally, the TOF module 12 adopts either single-point TOF or multi-point TOF, or a combination of the two.

[0049] As an embodiment, the TOF module 12, the camera module 13, the driving module 11, the connecting module 15, the voltage stabilizing module 14 and the storage module 16 are integrated into a circuit board. It can be understood that the TOF module 12, the camera module 13, the driving module 11, the connecting module 15, the voltage stabilizing module 14 and the storage module 16 are an integrated module, which can be directly installed in an electronic device for use, and directly connected through the connecting port in the connecting module 15 to transmit signals, thereby improving the integration of the module and making subsequent installation more convenient.

[0050] The driving module 11 includes a driving unit 111, a first two-wire communication interface 112 and a first communication interface 113. The first two-wire communication interface 112 and the first communication interface 113 are respectively connected to the driving unit 111. The first two-wire communication interface 112 uses an IIC interface to transmit signals, and the first communication interface 113 uses a data interface. The driving unit 111 uses a control chip to control the operation of the camera and the TOF module 12, and transmits the signals transmitted by the camera and the TOF module 12 to the outside through the connection module 15.

[0051] The E7 and E9 ports of the driving unit 111 transmit the CMOS_SDA signal and the CMOS_SCK signal respectively, and are connected to the first two-wire communication interface 112. The C1, C3, and A7 ports are connected to the voltage stabilizing module 14 respectively. The A3, B4, A5, and B6 ports are connected to the storage module 16. The D2 and E1 ports are used for signal transmission with the connection module 15.

[0052] The TOF module 12 includes a second two-wire communication interface 121 and a TOF unit. The TOF unit is connected to the second two-wire communication interface 121, and the first two-wire communication interface 112 is connected to the second two-wire communication interface 121. It can be understood that the second two-wire communication interface 121 and the first two-wire communication interface 112 match each other, and the first two-wire communication interface 112 and the second two-wire communication interface 121 transmit signals according to the IIC protocol, which can realize the transmission of CMOS_SDA signal and CMOS_SCK signal. The first terminal of the TOF unit is connected to the voltage stabilizing module 14, and is driven by the 3.3V power supply provided by the voltage stabilizing module 14. The ninth terminal and the tenth terminal of the TOF unit are connected to the second two-wire communication interface 121.

[0053] The camera module 13 includes a second communication interface 131 and a camera chip. The first communication interface 113 is connected to the second communication interface 131. The first communication interface 113 and the second communication interface 131 match each other and use a DATA interface to transmit signals between the camera module 13 and the driving module 11.

[0054] The voltage stabilizing module 14 includes a voltage stabilizing unit, the input port of which is connected to the connecting module 15, and inputs a 5V power supply. Through voltage transformation by the voltage stabilizing unit, a 3.3V power supply is output to meet the driving voltage of other units in the circuit.

[0055] The connection module 15 includes a connection port, which is connected to an external interface. In this embodiment, the connection port is a USB interface. The VIN terminal inputs a 5V power supply, and the D+ and D- terminals are used to transmit data signals.

[0056] The storage module 16 includes a storage chip, and a first terminal, a second terminal, a fifth terminal, and a sixth terminal of the storage chip are used to connect to the driving module 11 .

[0057] Second, see Fig. 9 The present invention discloses a projector 100, which includes the above-mentioned camera and TOF integrated module 1 and a main control module 2, wherein the main control module 2 is connected to the connection module 15 of the integrated module, wherein the connection port of the connection module 15 of the integrated module adopts a USB interface or a MIPI-CSI interface, and the type of the connection port of the connection module 15 needs to be selected according to the corresponding existing interface in the main control module 2. The connection port of the connection module 15 is of the same type as the connection port on the main control module 2, and they match each other, and the camera and TOF can be installed in a projector 100 through one interface.

[0058] It can be understood that the projector 100 adopts an integrated module, and the signal is transmitted between the internal main control module 2 and the integrated module, which can save a wire during internal installation and reduce the cost. In addition, the projector 100 that originally only has a USB interface or a MIPI-CSI interface does not need to change the mainboard design of the projector 100 in order to install TOF, such as adding an IIC interface, which saves design costs and makes upgrade development more efficient.

[0059] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0060] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0061] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0062] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0065] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0066] The above is a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A camera and TOF integrated module, characterized in that: It includes a TOF module, a camera module, a driving module, and a connecting module, wherein the driving module is electrically connected to the TOF module and the camera module respectively, and the driving module is electrically connected to the connecting module; The connection module uses either a USB interface or a MIPI-CSI interface to connect to external devices.

2. The camera and TOF integrated module according to claim 1, characterized in that: It includes a voltage stabilizing module, and the voltage stabilizing module is electrically connected to the driving module and the connecting module respectively.

3. The camera and TOF integrated module according to claim 1, characterized in that: A storage module is included, and the storage module is electrically connected to the driving module.

4. The camera and TOF integrated module according to claim 1, characterized in that: The driving module includes a first two-wire communication interface; The TOF module includes a second two-wire communication interface, and the first two-wire communication interface is connected to the second two-wire communication interface.

5. The camera and TOF integrated module according to claim 1, characterized in that: The driving module includes a first communication interface; The camera module includes a second communication interface, and the first communication interface is connected to the second communication interface.

6. The camera and TOF integrated module according to claim 5, characterized in that: The first two-wire communication interface and the second two-wire communication interface communicate with each other according to the IIC protocol.

7. The camera and TOF integrated module according to claim 6, characterized in that: The driving module includes a driving unit, and the driving unit is connected to the first two-wire communication interface and the first communication interface respectively.

8. The camera and TOF integrated module according to claim 1, characterized in that: The TOF module, the camera module, the driving module, and the connecting module are integrated into one circuit board.

9. A projector, characterized in that: A camera and TOF integrated module comprising any one of claims 1 to 9.

10. The projector according to claim 9, characterized in that It comprises a main control module, and the connection module is electrically connected to the main control module.

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