Tracking type scanning system

Abstract

The utility model relates to a tracking type scanning system. The tracking type scanning system comprises scanning equipment, tracking equipment, a wireless transmission module and computer equipment, wherein the scanning equipment comprises a first wireless transmission interface; the tracking equipment comprises a second wireless transmission interface; the computer equipment comprises a third wireless transmission interface; the wireless transmission module comprises a wireless network terminal and a wireless router; the first wireless transmission interface, the second wireless transmission interface and the third wireless transmission interface are respectively connected to a wireless network terminal; and each wireless network terminal is in communication connection with the wireless router. According to the tracking type scanning system, the wireless transmission module is added in the tracking type scanning system to replace a cable for communication, so that wireless communication among scanning equipment, tracking equipment and computer equipment is realized, the building difficulty of the tracking type scanning system can be reduced, and the maintenance cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of tracking scanning, and in particular to a tracking scanning system. Background Art

[0002] The current tracking scanning system often requires the matching setting of tracking devices and scanning devices. Among them, the normal operation of the tracking device and the scanning device depends on the power supply of the power cable and the data transmission of the data transmission cable, such as USB cable transmission or network communication cable transmission. Therefore, in the tracking scanning system, a single tracking device and a single scanning device need to be configured with a power cable, USB cable / network communication cable respectively. This configuration requirement will lead to a cumbersome work scene and a complicated cable connection method for the tracking scanning system with multiple tracking devices and scanning devices cascaded. In addition, during the use of the tracking device and the scanning device, the cable needs to move and twist for a long time, so the flexibility of the cable is required to be higher, which leads to higher maintenance costs. In addition, due to scene requirements, when the tracking device is far away from the computer device, the cable length requirement is also higher.

[0003] Based on this, the current tracking scanning system has the problem of complex system construction and high requirements on cable materials and maintenance costs.

[0004] There is currently no effective solution to the problems of high difficulty in system construction and high maintenance costs in related technologies. Utility Model Content

[0005] In this embodiment, a tracking scanning system is provided to solve the problems in the related art that the system is difficult to build and has high maintenance costs.

[0006] In a first aspect, a tracking scanning system is provided in this embodiment, including: a scanning device, a tracking device, a wireless transmission module and a computer device; wherein:

[0007] The scanning device includes a first wireless transmission interface; the tracking device includes a second wireless transmission interface; the computer device includes a third wireless transmission interface;

[0008] The wireless transmission module includes a wireless network terminal and a wireless router;

[0009] The first wireless transmission interface, the second wireless transmission interface and the third wireless transmission interface are respectively connected to one of the wireless network terminals; each of the wireless network terminals is in communication connection with the wireless router.

[0010] In some embodiments, the scanning device includes a first pre-processing circuit based on a heterogeneous processor; the first image sensor of the scanning device is connected to an input end of the first pre-processing circuit; the first wireless transmission interface is connected to an output end of the first pre-processing circuit;

[0011] The first pre-processing circuit is used to perform pre-calculation on the first scanning data collected by the first image sensor, and transmit the generated first pre-calculation result to the computer device through the wireless transmission module.

[0012] In some of these embodiments, the heterogeneous processor includes a programmable logic array and a microprocessor.

[0013] In some embodiments, the tracking device includes a second pre-processing circuit based on a heterogeneous processor; the second image sensor of the tracking device is connected to an input end of the second pre-processing circuit; the second wireless transmission interface is connected to an output end of the second pre-processing circuit;

[0014] The second pre-processing circuit is used to perform pre-calculation on the second scanning data collected by the second image sensor, and transmit the generated second pre-calculation result to the computer device through the wireless transmission module.

[0015] In some of the embodiments, a first battery power supply module is embedded in a body of the scanning device.

[0016] In some embodiments, the first battery power supply module includes a power supply battery, a battery protection board and a battery compartment; wherein:

[0017] The battery compartment is integrated with the housing of the scanning device and embedded in the body of the scanning device; the battery compartment is connected to the battery protection board through a conductive metal sheet; after the power supply battery is installed in the battery compartment, it supplies power to the scanning device.

[0018] In some of the embodiments, a second battery power supply module is embedded in the body of the tracking device.

[0019] In some embodiments, the skeleton of the tracking device is an axisymmetric structure; the second battery power supply module includes dual power supply slots; the dual power supply slots are separately embedded in the body of the tracking device, and the dual power supply slots are symmetrical based on the symmetry axis of the skeleton.

[0020] In some of the embodiments, the transmission frequency of the wireless communication between the scanning device, the tracking device and the computer device is: 2.4G, 5G or 6G.

[0021] In some embodiments, the wireless network terminal is connected to the first wireless transmission interface, the second wireless transmission interface and the third wireless transmission interface in a plug-in manner.

[0022] Compared with the related art, the tracking type three-dimensional scanning system provided in this embodiment includes: a scanning device, a tracking device, a wireless transmission module and a computer device; wherein: the scanning device includes a first wireless transmission interface; the tracking device includes a second wireless transmission interface; the computer device includes a third wireless transmission interface; the wireless transmission module includes a wireless network terminal and a wireless router; the first wireless transmission interface, the second wireless transmission interface and the third wireless transmission interface are respectively connected to a wireless network terminal; each wireless network terminal is connected to the wireless router for communication. By adding a wireless transmission module to the tracking type scanning system, instead of cables for communication, wireless communication between the scanning device, the tracking device and the computer device is realized, thereby reducing the difficulty of building the tracking type scanning system and reducing maintenance costs.

[0023] Details of one or more embodiments of the present application are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0025] Figure 1 is a schematic structural diagram of the tracking scanning system of this embodiment;

[0026] Figure 2 is a data transmission schematic diagram of a tracking scanning system of this embodiment;

[0027] Figure 3 is a structural schematic diagram of a first battery power supply module of this embodiment;

[0028] Figure 4 is a schematic diagram of the structure of a tracking device of this embodiment;

[0029] Figure 5 It is a schematic structural diagram of a tracking scanning system according to one embodiment. DETAILED DESCRIPTION

[0030] In order to more clearly understand the purpose, technical solutions and advantages of the present application, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments.

[0031] Unless otherwise defined, the technical terms or scientific terms involved in this application shall have the general meaning understood by people with ordinary skills in the technical field to which this application belongs. The words "one", "a", "a", "the", "these" and the like in this application do not represent quantitative restrictions, and they can be singular or plural. The terms "include", "comprise", "have" and any variants thereof involved in this application are intended to cover non-exclusive inclusions; for example, a process, method and system, product or device comprising a series of steps or modules (units) is not limited to the listed steps or modules (units), but may include unlisted steps or modules (units), or may include other steps or modules (units) inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether directly or indirectly. The "multiple" involved in this application refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, "A and / or B" can mean: A exists alone, A and B exist at the same time, and B exists alone. Usually, the character " / " indicates that the objects associated with each other are in an "or" relationship. The terms "first", "second", "third", etc. involved in this application are only used to distinguish similar objects and do not represent a specific ordering of the objects.

[0032] It should be noted that when an element is referred to as being "provided on" another element, it may be directly provided on the other element or there may be a central element. When an element is considered to be "provided on" another element, it may be directly provided on the other element or there may be a central element at the same time. When an element is considered to be "fixed to" another element, it may be directly fixed to the other element or there may be a central element at the same time.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0034] In this embodiment, a tracking scanning system is provided. Figure 1 FIG. 1 is a schematic diagram of the structure of the tracking scanning system 100 of this embodiment. Figure 1 As shown, the tracking scanning system 100 includes: a scanning device 102, a tracking device 104, a wireless transmission module 106 and a computer device 108; wherein:

[0035] The scanning device 102 includes a first wireless transmission interface; the tracking device 104 includes a second wireless transmission interface; the computer device 108 includes a third wireless transmission interface; the wireless transmission module 106 includes a wireless network terminal and a wireless router; the first wireless transmission interface, the second wireless transmission interface and the third wireless transmission interface are respectively connected to a wireless network terminal; each wireless network terminal is communicatively connected to the wireless router.

[0036] In this embodiment, wireless communication is used to replace the wired communication method based on cables in the tracking three-dimensional scanning system in the related art to realize the communication between the scanning device, the tracking device and the computer device. Specifically, the scanning device 102 and the tracking device 104 can realize the synchronous triggering operation of image acquisition based on wireless communication. Among them, the synchronous triggering of the scanning device 102 and the tracking device 104 refers to the scanning device 102 and the tracking device 104 taking pictures and collecting images at the same time, and calculating the images obtained by each to obtain the scanning data or posture data. Therefore, this embodiment ensures the synchronous triggering of multiple tracking devices 104 and multiple scanning devices 102 during the tracking scanning process through wireless synchronization technology. In addition, the scanning device 102 and the computer device 108 perform data transmission based on the wireless transmission module 106, and the tracking device 104 and the computer device 108 also perform data transmission through the wireless transmission module 106. Therefore, this embodiment can realize a communication method that is detached from the cable.

[0037] Specifically, the wireless network terminal may be a wireless network card. The first wireless transmission interface, the second wireless transmission interface, and the third wireless transmission interface may all be interfaces into which a wireless network card may be inserted, such as a USB interface. The wireless transmission module 106 may include a wireless router and a wireless network card that support 5G WiFi transmission. The wireless network card is respectively inserted into the scanning device 102, the tracking device 104, and the computer device 108, and communicates with the hardware computing module inside the scanning device 102, the tracking device 104, and the computer device 108 through the USB protocol, and realizes wireless WIFI transmission of the USB link. The wireless transmission frequency of this embodiment can be set according to the requirements of the actual application scenario, for example, it can be 2.4G, 5G, or 6G.

[0038] In particular, to adapt to the fluctuations of the wireless transmission network, different scanning devices and tracking devices can reduce the output frame rate based on dynamic synchronous frame loss to achieve synchronous frame loss in links with slower network speeds. In addition, in links with faster network speeds, it is not necessary to use the frame loss strategy for data transmission.

[0039] In this embodiment, by adding a wireless transmission module 106 to the tracking scanning system 100, instead of cables for communication, wireless communication between the scanning device 102, the tracking device 104 and the computer device 108 is achieved, thereby reducing the difficulty of building the tracking scanning system and reducing maintenance costs.

[0040] In one embodiment, the scanning device 102 includes a first pre-processing circuit based on a heterogeneous processor; the first image sensor of the scanning device 102 is connected to the input end of the first pre-processing circuit; the first wireless transmission interface is connected to the output end of the first pre-processing circuit; the first pre-processing circuit is used to perform pre-calculation on the first scanning data collected by the first image sensor, and transmit the generated first pre-calculation result to the computer device 108 through the wireless transmission module 106.

[0041] The first pre-processing circuit is a hardware circuit for pre-calculation, which can be implemented by integrating different computing modules or chips. Specifically, the first pre-processing circuit can deploy preset algorithms, such as geometric marker point cutout algorithm, ellipse marker point extraction algorithm and laser line center extraction algorithm. The specifically deployed algorithm is used to implement pre-calculation based on the original data collected by the scanning device or tracking device to obtain intermediate data or feature data. This embodiment does not specifically limit the type of algorithm deployed and the execution steps of the algorithm. This embodiment adds a hardware circuit for pre-calculation in the scanning device 102, and replaces the original scanned image directly collected in the related technology as output with the cutout data or feature data after the pre-calculation, thereby reducing the amount of data transmitted to the computer device 108, thereby adapting to the wireless transmission bandwidth, and further reducing the amount of calculation on the computer device 108 side, thereby improving the calculation efficiency.

[0042] In one embodiment, the heterogeneous processor includes a programmable logic array and a microprocessor. Specifically, the programmable logic array (Field Programmable Gate Array, referred to as FPGA) and the microprocessor (Advanced RISC Machines, referred to as ARM) can be combined to implement the first pre-processing circuit of this embodiment. In which, the wireless network terminal, that is, the wireless network card, can be inserted into the scanning device 102 in the form of a USB A port, and connected to the ARM through the USB3.0 protocol, so as to transmit the result of the pre-calculation to the computer device 108.

[0043] Therefore, this embodiment can implement pre-calculations through heterogeneous processors in the form of protocol processing, such as extracting the center attributes of geometric marker points and laser line position attributes in each frame, and transmitting the center attributes of the geometric marker points and laser line position attributes according to a fixed protocol, thereby adapting to low-bandwidth and high-frame-rate wireless transmission methods, and further enabling the application of 5G wireless transmission in tracking scanning systems.

[0044] Accordingly, the tracking device 104 includes a second pre-processing circuit based on a heterogeneous processor; the second image sensor of the tracking device 104 is connected to the input end of the second pre-processing circuit; the second wireless transmission interface is connected to the output end of the second pre-processing circuit; the second pre-processing circuit is used to perform pre-calculation on the second scanning data collected by the second image sensor, and transmit the generated second pre-calculation result to the computer device 108 through the wireless transmission module 106.

[0045] The second pre-processing circuit in the tracking device 108 can also be implemented based on FPGA and ARM. The wireless network card is connected via USB A port and connected to the ARM in the second pre-processing circuit via USB 3.0. Figure 2 FIG. 1 is a schematic diagram of data transmission of a tracking scanning system of this embodiment. Figure 2 As shown, in Figure 1 On the basis of the wireless transmission module 106, the wireless network card A, the wireless network card B, the wireless network card C and the wireless router. The wireless network card A is inserted into the first wireless transmission interface of the scanning device 102, the wireless network card B is inserted into the second wireless transmission interface of the tracking device 104, and the wireless network card C is inserted into the third wireless transmission interface of the computer device 108. The scanning device 102, the tracking device 104 and the computer device 108 realize communication with each other based on the communication between their corresponding wireless network cards and the wireless router. For example, the scanning device 102 transmits the first pre-calculation result calculated by the first pre-processing circuit of the scanning device 102 to the computer device 108 based on the communication between the wireless network card A and the wireless router, and realizes wireless synchronization triggering with the tracking device 104.

[0046] In addition, in one embodiment, a first battery power module is embedded in the body of the scanning device 102. Specifically, in this embodiment, the scanning device 102 is powered by a battery power module embedded in the scanning device 102, replacing the power supply method of the power cable, so that the scanning device 102 can work completely without external cables, thereby realizing portable three-dimensional scanning.

[0047] Furthermore, in one embodiment, the first battery power supply module includes a power supply battery, a battery protection board and a battery compartment; wherein: the battery compartment is integrated with the housing of the scanning device and embedded in the body of the scanning device; the battery compartment is connected to the battery protection board through a conductive metal sheet; after the power supply battery is installed in the battery compartment, it supplies power to the scanning device.

[0048] In this embodiment, a battery protection board, a battery compartment and a lithium battery for power supply are arranged in the first battery power supply module. Figure 3 This is a schematic diagram of the structure of a first battery power supply module of the present embodiment. Among them, the battery protection board 301 can be embedded in the housing 102a of the scanning device through the limit screws, the battery compartment 302 is integrated with the housing 102a and embedded in the body of the scanning device, the battery compartment 302 is connected to the battery protection board 301 through two conductive metal sheets 304, and the scanning device can be powered by installing the power supply battery 303 into the battery compartment 302. Among them, the battery compartment 302 may include a battery compartment cover 302a. The embedded battery power supply module provided in this embodiment, while introducing battery power supply for the scanning device, meets the miniaturization and simplification of the product appearance, and improves the portability of the scanning device, reduces redundant space, and enhances the user experience.

[0049] Additionally, in one embodiment, a second battery power module is embedded in the body of the tracking device 104. In order to enable the tracking device 104 to work completely without a cable, the present embodiment also provides a battery power module for the tracking device 104.

[0050] In one embodiment, the skeleton of the tracking device 104 is an axisymmetric structure; the second battery power supply module includes dual power supply slots; the dual power supply slots are separated and embedded in the body of the tracking device 104, and the dual power supply slots are symmetrical based on the symmetry axis of the skeleton.

[0051] Figure 4 FIG. 1 is a schematic diagram of the structure of a tracking device 104 of this embodiment. Figure 4 As shown, the frame of the tracking device 104 is an axisymmetric structure. The two image sensors of the tracking device 104 are respectively arranged at the two ends of the frame of the tracking device 104, namely the left image sensor 104a and the right image sensor 104b. The second battery power supply module includes a dual power supply slot, specifically Figure 4 The left power supply slot 104c and the right power supply slot 104d are symmetrically distributed based on the symmetry axis of the skeleton of the tracking device 104. The symmetry axis is as shown in FIG. Figure 4 As shown by the dotted line in .

[0052] The dual power supply slot structure adopted in this embodiment can support the use of multiple smaller batteries instead of one large battery to power the tracking device 104. Figure 4 When the battery in the left power supply slot 104c runs out of power, the battery in the right power supply slot 104d can be switched to supply power. Therefore, in this embodiment, the battery can be built-in and the structure can be balanced on both sides. In addition, multiple batteries can relay power to the tracking device 104, so that the tracking device 104 can work continuously and meet the larger power demand of the tracking device 104.

[0053] Additionally, in the present embodiment, the transmission frequency of the wireless communication between the scanning device 102, the tracking device 104 and the computer device 108 is: 2.4G, 5G or 6G.

[0054] In addition, in one embodiment, the wireless network terminal is connected to the first wireless transmission interface, the second wireless transmission interface and the third wireless transmission interface in a plug-in manner. Based on this, the access of the wireless network terminal can be flexibly achieved.

[0055] Figure 5 FIG. 1 is a schematic diagram of the structure of a tracking scanning system 100 according to one embodiment of the present invention. Figure 5 As shown, the tracking scanning system 100 includes: a scanning device 102, a tracking device 104, a wireless transmission module 106 and a computer device 108. The scanning device 102 includes a first power supply module and a first wireless transmission interface; the tracking device 104 includes a second power supply module and a second wireless transmission interface. The wireless transmission module 106 includes a wireless network card A, a wireless network card B, a wireless network card C and a wireless router. The wireless network card A accesses the scanning device 102 based on the first wireless transmission interface, the wireless network card B accesses the tracking device 104 based on the second wireless transmission interface, and the wireless network card C accesses the computer device 108 based on the third wireless transmission module.

[0056] Based on the above embodiment, in the actual application of the tracking scanning system 100, after the first image sensor of the scanning device 102 collects the scanning data, the first pre-processing circuit pre-processes the collected raw scanning data to obtain a first pre-calculation result, and the wireless network terminal connected to the scanning device 102 transmits the first pre-calculation result to the computer device 108 through communication with the wireless router. After the second image sensor of the tracking device 104 collects the posture data of the scanning device 102, the second pre-processing circuit pre-processes the collected raw posture data to obtain a second pre-calculation result, and the wireless network terminal connected to the tracking device 104 transmits the second pre-calculation result to the computer device 108 through communication with the wireless router. The computer device 108 processes the first pre-calculation result and the second pre-calculation result, and outputs the final tracking scanning result. Among them, the scanning device 102 and the tracking device 104 are synchronously triggered based on wireless synchronization technology. In addition, in order to adapt to the bandwidth of wireless transmission, the scanning device 102 and the tracking device 104 can perform synchronous frame loss processing on the data to be transmitted based on the synchronous frame drop signal sent by the computer device 108 and then transmit it to the computer device 108.

[0057] The above embodiment reduces the amount of data transmitted by adding a pre-processing circuit, thereby reducing the transmission bandwidth requirement. Data interaction is performed by wireless transmission, eliminating the configuration of communication cables, improving the convenience of tracking devices and scanning devices, and reducing the difficulty of system construction. Furthermore, through the power supply of the embedded power supply module, the tracking device and the scanning device can be completely separated from the external cables to achieve portable scanning or tracking scanning.

[0058] It should be understood that the specific embodiments described herein are only used to explain the application, rather than to limit it. Based on the embodiments provided in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of this application.

[0059] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0060] Obviously, the drawings are only some examples or embodiments of the present application. For ordinary technicians in the field, the present application can also be applied to other similar situations based on these drawings without creative work. In addition, it is understandable that although the work done in this development process may be complicated and lengthy, for ordinary technicians in the field, certain changes in design, manufacturing or production based on the technical content disclosed in this application are only conventional technical means and should not be regarded as insufficient content disclosed in this application.

[0061] The term "embodiment" in this application refers to a specific feature, structure or characteristic described in conjunction with the embodiment that can be included in at least one embodiment of the present application. The appearance of this phrase in various locations in the specification does not necessarily mean the same embodiment, nor does it mean that it is mutually exclusive with other embodiments and is independent or optional. It is clearly or implicitly understood by those of ordinary skill in the art that the embodiments described in this application can be combined with other embodiments without conflict.

[0062] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of patent protection. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the scope of protection of the present application. Therefore, the scope of protection of the present application shall be subject to the attached claims.

Claims

1. A tracking scanning system, characterized in that: include: Scanning devices, tracking devices, wireless transmission modules, and computer devices; wherein: The scanning device includes a first wireless transmission interface; the tracking device includes a second wireless transmission interface; the computer device includes a third wireless transmission interface; The wireless transmission module includes a wireless network terminal and a wireless router; The first wireless transmission interface, the second wireless transmission interface and the third wireless transmission interface are respectively connected to one of the wireless network terminals; each of the wireless network terminals is in communication connection with the wireless router.

2. The tracking scanning system according to claim 1, characterized in that: The scanning device comprises a first pre-processing circuit based on a heterogeneous processor; a first image sensor of the scanning device is connected to an input end of the first pre-processing circuit; The first wireless transmission interface is connected to the output end of the first pre-processing circuit; The first pre-processing circuit is used to perform pre-calculation on the first scanning data collected by the first image sensor, and transmit the generated first pre-calculation result to the computer device through the wireless transmission module.

3. The tracking scanning system according to claim 2, characterized in that: The heterogeneous processor includes a programmable logic array and a microprocessor.

4. The tracking scanning system according to any one of claims 1 to 3, characterized in that: The tracking device comprises a second pre-processing circuit based on a heterogeneous processor; a second image sensor of the tracking device is connected to an input end of the second pre-processing circuit; The second wireless transmission interface is connected to the output end of the second pre-processing circuit; The second pre-processing circuit is used to perform pre-calculation on the second scanning data collected by the second image sensor, and transmit the generated second pre-calculation result to the computer device through the wireless transmission module.

5. The tracking scanning system according to claim 1, characterized in that: The scanning device has a first battery power supply module embedded in the body.

6. The tracking scanning system according to claim 5, characterized in that: The first battery power supply module includes a power supply battery, a battery protection board and a battery compartment; wherein: The battery compartment is integrated with the housing of the scanning device and embedded in the body of the scanning device; the battery compartment is connected to the battery protection board through a conductive metal sheet; after the power supply battery is installed in the battery compartment, it supplies power to the scanning device.

7. The tracking scanning system according to claim 1, characterized in that: The tracking device has a second battery power supply module embedded in its body.

8. The tracking scanning system according to claim 7, characterized in that: The frame of the tracking device is an axisymmetric structure; the second battery power supply module includes a dual power supply slot; the dual power supply slot is separately embedded in the body of the tracking device, and the dual power supply slot is symmetrical based on the symmetry axis of the frame.

9. The tracking scanning system according to claim 1, characterized in that: The transmission frequency of the wireless communication between the scanning device, the tracking device and the computer device is: 2.4G, 5G or 6G.

10. The tracking scanning system according to claim 1, characterized in that: The wireless network terminal is connected to the first wireless transmission interface, the second wireless transmission interface and the third wireless transmission interface in a plug-in manner.

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