Measuring equipment

Abstract

The present application provides a measuring device, wherein the measuring device includes: a printed circuit board, an antenna, and a main board; the antenna includes a passive board and a radio frequency circuit; the passive board is arranged on the first side of the printed circuit board; the radio frequency circuit is arranged on the second side of the printed circuit board; and the main board is arranged on the second side of the printed circuit board.

Description

Technical Field

[0001] The present application relates to the technical field of measuring equipment design, and in particular to a measuring equipment. Background Art

[0002] In the field of surveying and mapping, relevant surveyors are required to carry surveying and mapping equipment, but the surveying and mapping locations are different. If the surveying and mapping equipment is too large, it will be inconvenient for the surveyors to carry it. Furthermore, the surveying and mapping equipment may also need to be installed on various machines to achieve some auxiliary measurements. If the measuring equipment is too large, it will also be inconvenient to install. Summary of the invention

[0003] The purpose of the present application is to provide a measuring device that can improve the problem of the measuring device being too large in size.

[0004] In a first aspect, the present invention provides a measuring device, comprising: a printed circuit board, an antenna, and a mainboard;

[0005] The antenna includes a passive board and a radio frequency circuit;

[0006] The passive board is arranged on the first surface of the printed circuit board;

[0007] The radio frequency circuit is arranged on the second surface of the printed circuit board;

[0008] The main board is arranged on the second surface of the printed circuit board.

[0009] In an optional embodiment, it further includes: a first shielding cover;

[0010] The first shielding cover is arranged on the second surface of the printed circuit board, and the radio frequency circuit is arranged in the first shielding cover.

[0011] In the above embodiment, the radio frequency circuit of the antenna is covered by the first shielding cover, which can reduce the interference of the mainboard on the second surface of the printed circuit board on the signal of the radio frequency circuit of the antenna, and improve the effectiveness of the implementation of the antenna function.

[0012] In an optional embodiment, it further includes: a second shielding cover;

[0013] The second shielding cover is disposed on the second surface of the printed circuit board, and the main board is disposed in the second shielding cover.

[0014] In the above embodiment, a second shielding cover may be provided, which covers the main board and can reduce the interference of other circuit modules on the printed circuit board to the main board, thereby improving the functional sensitivity of the main board.

[0015] In an optional embodiment, an intelligent module is provided on the main board;

[0016] The intelligent module includes: a communication unit and a core function unit.

[0017] In the above implementation, the communication function and the core function can be realized by the intelligent module, which can reduce the demand for the internal space of the measuring device.

[0018] In an optional embodiment, a shielding layer is provided between the first surface of the printed circuit board and the second surface of the printed circuit board.

[0019] In the above implementation, a shielding layer may be provided in the middle of the printed circuit board, which may reduce the influence between the functional units on the first surface and the second surface of the printed circuit board and improve the sensitivity of the measuring device.

[0020] In an optional embodiment, it further includes: a first housing and a second housing;

[0021] The first housing cover is disposed on the first surface of the printed circuit board;

[0022] The second shell cover is arranged on the second surface of the printed circuit board, and the edge of the second shell contacts the shielding layer.

[0023] In the above embodiment, a shell can be provided for the test device to protect the functional components in the printed circuit board; further, the edge of the second shell contacts the shielding layer, so that the space formed by the second shell and the printed circuit board can be more airtight.

[0024] In an optional embodiment, the shielding layer includes: an inner shielding portion and an edge shielding portion;

[0025] The inner shielding portion is arranged between the first surface of the printed circuit board and the second surface of the printed circuit board;

[0026] The edge shielding portion is wrapped around the edge of the printed circuit board and communicated with the inner layer shielding portion.

[0027] In an optional embodiment, the measuring device may further include: a chemical battery installed in the second housing or the first housing.

[0028] In the above embodiment, the measuring device is powered by a chemical battery, which has a smaller size than a lithium battery and can further reduce the size of the measuring device.

[0029] In an optional embodiment, it further includes: an interactive panel;

[0030] The interactive panel is electrically connected to the main board.

[0031] In the above implementation, an interactive panel may be provided, and the interactive panel may provide a user operation interface to facilitate user operation.

[0032] In an optional implementation, a positioning module is also integrated on the mainboard.

[0033] The beneficial effect of the embodiments of the present application is that by manufacturing the antenna and the main board on a printed circuit board, the size requirement of the measuring equipment can be reduced. Compared with the existing multi-layer stacked structure, the size of the measuring equipment provided by the present application is relatively smaller, which makes it easier to install and carry the measuring equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 It is a structural schematic diagram of an RTK receiver device in the prior art;

[0036] Figure 2 A schematic diagram of the structure of the first side of the measuring device provided in an embodiment of the present application;

[0037] Figure 3 A schematic diagram of the structure of the second surface of the measuring device provided in an embodiment of the present application;

[0038] Figure 4 A schematic diagram of the structure of the side surface of the measuring device provided in an embodiment of the present application;

[0039] Figure 5 A schematic diagram of the three-dimensional structure of the measuring device provided in an embodiment of the present application.

[0040] Icon: 100-RTK receiver device; 110-upper cover; 120-original antenna; 130-bracket; 140-original mainboard; 150-battery; 160-lower shell; 200-measuring device; 210-printed circuit board; 211-mounting hole; 220-first shell; 230-second shell; 240-mainboard; 241-positioning module; 242-battery management module; 243-intelligent module; 244-communication module; 250-antenna; 251-passive board; 2511-first frequency band board; 2512-second frequency band board; 252-RF circuit; 260-chemical battery; 270-shielding layer. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings in the embodiments of the present application.

[0042] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present application, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are orientations or positional relationships that are commonly visited when the inventive product is used. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be interpreted as a limitation of the present application.

[0044] In the description of this application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] The inventors have learned that a common RTK (Real-time kinematic) receiver device includes a multi-layer structure, and the assembled structure is relatively large. Figure 1 As shown, the RTK receiver device 100 includes: an upper cover 110 , an original antenna 120 , a bracket 130 , an original mainboard 140 , a battery 150 , and a lower shell 160 .

[0046] The original antenna 120 includes: a passive board, a printed circuit board, and a radio frequency circuit, wherein the passive board and the radio frequency circuit are arranged on the front and back sides of the printed circuit board respectively.

[0047] The original motherboard 140 generally comprises: GNSS (Global Navigation Satellite System) module, CPU (central processing unit) core system, wifi & bt (Bluetooth) function, 4G function module, inertial navigation element, power management, radio, printed circuit board, etc. Each functional module is arranged on the front and back of the printed circuit board.

[0048] The bracket 130 is a metal plate with a mounting hole reserved for fixing the antenna. In some common cases, the bracket 130 can also be designed with a mounting hole for fixing the original mainboard 140.

[0049] The bracket 130 is located between the original antenna 120 and the original mainboard 140. The original antenna 120 and the original mainboard 140 are connected together through the bracket via the RF connector. The bracket has two functions: 1) shielding and isolating digital signals and RF signals. After assembly, the bracket and the lower shell form a shielding cavity, encapsulating the mainboard and the battery in the shielding cavity to prevent electromagnetic leakage and interference lines; 2) fixing the antenna.

[0050] The battery 150 is assembled at the bottom of the lower shell 160 and connected to the original mainboard 140 through a connector to supply power to various components on the original mainboard 140 .

[0051] Although the above-mentioned RTK receiver device 100 has various required functional components, it still has some shortcomings, which are specifically reflected in: 1) There are many materials and the equipment failure rate is high. The antenna, bracket, and motherboard are all independent components, and each independent component has a set of process flows, such as plate making, patching, transportation, assembly, etc. There are many materials and process flows, and the equipment failure rate is high; 2) The weight of the equipment is large. The RTK receiver device is a handheld device, and users use it by holding it in their hands, which makes it difficult for relevant users to use the device; 3) There are many parts and components, and the assembly is complex.

[0052] Based on the above research, the inventors understand that reducing the weight of equipment is a development trend. The inventors of this application have studied some existing equipment and learned that the areas where RTK receiver equipment can reduce weight are mainly in terms of material types, equipment volume and material. Therefore, based on the above research, the embodiments of this application provide a measurement device that can reduce the material requirements of the equipment, as well as the volume and weight of the materials. The measurement device provided by this application is described below through some embodiments.

[0053] like Figure 2-Figure 5 As shown, an embodiment of the present application provides a measuring device 200 , which includes: a printed circuit board 210 , an antenna 250 , and a mainboard 240 .

[0054] In this embodiment, the antenna 250 includes a passive board 251 and a radio frequency circuit 252 .

[0055] like Figure 3 As shown, the passive board 251 is disposed on the first surface of the printed circuit board 210. Figure 4 As shown, the radio frequency circuit 252 is disposed on the second surface of the printed circuit board 210 .

[0056] Optionally, the passive board 251 of the antenna 250 and the radio frequency circuit 252 of the antenna 250 may be electrically connected using a feed pin.

[0057] For example, Figure 4 As shown, the passive board 251 may include a first frequency band board 2511 and a second frequency band board 2512. The first frequency band board 2511 and the second frequency band board 2512 are stacked and arranged on the first surface of the printed circuit board 210.

[0058] The frequency band of the first frequency band board 2511 may be 1.2 GHz; the frequency band of the second frequency band board 2512 may be 1.5 GHz.

[0059] The main board 240 is disposed on the second surface of the printed circuit board 210 .

[0060] In the measuring device 200 provided in the embodiment of the present application, since the printed circuit board 210, the antenna 250 and the main board 240 are assembled into one component, the number of components in the measuring device 200 can be reduced, the difficulty of assembling the measuring device 200 can be reduced, and the size of the measuring device 200 can be reduced.

[0061] In order to meet the functional requirements of the measuring device 200 , the main board 240 may include an intelligent module 243 .

[0062] Optionally, the intelligent module 243 may be fabricated on the mainboard 240 in a highly integrated embedded manner. The highly integrated embedded manner may reduce the power consumption required to implement the functions on the intelligent module 243.

[0063] Exemplarily, the smart module 243 includes: a communication unit and a core function unit. The communication unit can be a Wi-Fi communication unit, a WiFi&BT communication unit, a 4G communication unit, or a 4G communication unit.

[0064] The core functional unit may include a processing unit. For example, the processing unit may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

[0065] Optionally, the core functional unit may further include a storage unit for storing control instructions required by the processing unit. The storage unit may also store data required to be processed by the processing unit, and the storage unit may also store data processed by the processing unit.

[0066] Optionally, a positioning module 241 may be integrated on the mainboard 240. The positioning module 241 may be a GNSS (Global Navigation Satellite System) positioning system. Of course, the positioning module 241 may also be a positioning module implemented by other positioning systems, for example, QZSS (Quasi-Zenith Satellite System, Chinese name: Quasi-Zenith Satellite System), IRNSS (Indian Regional Navigation Satellite System, Chinese name: Indian Regional Navigation Satellite System), etc.

[0067] In the above-mentioned measuring device 200, by installing both the antenna 250 and the main board 240 on the printed circuit board 210, not only the material requirements of the measuring device 200 can be reduced, but the size requirements of the measuring device 200 are also relatively smaller, making it more convenient for relevant surveying and mapping personnel to carry the measuring device 200 for mapping or measurement work.

[0068] In order to reduce the mutual interference between the components on the printed circuit board 210, a shielding cover may be further provided to separate the components, thereby reducing the interference between the components.

[0069] Exemplarily, the measuring device 200 further includes: a first shielding cover.

[0070] The first shielding cover is disposed on the second surface of the printed circuit board 210 , and the radio frequency circuit 252 is disposed in the first shielding cover.

[0071] Considering that the RF circuit 252 is easily interfered by the digital components on the mainboard 240, in order to improve the working effect of the RF circuit 252, the RF circuit 252 is covered with the first shielding cover, which can protect the RF circuit 252 from being interfered by the digital components on the mainboard 240 and improve the working effectiveness of the antenna 250. Furthermore, isolation without a bracket can also be achieved, and isolation of the antenna 250 and the mainboard 240 can also be achieved.

[0072] Optionally, the measuring device 200 may further include: a second shielding cover.

[0073] The second shielding cover is disposed on the second surface of the printed circuit board 210 , and the main board 240 is disposed in the second shielding cover.

[0074] Based on different requirements, more shielding covers may be provided on the printed circuit board 210 of the measuring device 200 . For example, a shielding cover may be provided for each functional area on the printed circuit board 210 .

[0075] By covering the main board 240 on the second surface of the printed circuit board 210 , the interference of components in the main board 240 to the antenna 250 can be reduced, and the main board 240 may be protected and the interference of other components on the printed circuit board 210 on the main board 240 may be reduced.

[0076] Optionally, a shielding layer 270 is disposed between the first surface of the printed circuit board 210 and the second surface of the printed circuit board 210 .

[0077] The shielding layer 270 can form shielding isolation between the passive board 251 of the antenna 250 and the main board 240 , thereby improving the mutual independence of the passive board 251 of the antenna 250 and the main board 240 .

[0078] Exemplarily, the shielding layer 270 includes an inner shielding portion and an edge shielding portion.

[0079] The inner shielding portion is disposed between the first surface of the printed circuit board 210 and the second surface of the printed circuit board 210 ; the edge shielding portion is wrapped around the edge of the printed circuit board 210 and communicated with the inner shielding portion.

[0080] Exemplarily, the inner shield and the edge shield may be electrically connected.

[0081] Exemplarily, the inner shielding portion and the edge shielding portion of the shielding layer 270 may be integrally formed; or the inner shielding portion may be manufactured first, and then the edge of the printed circuit board 210 may be sealed to form the edge shielding portion.

[0082] Through the double shielding of the inner shielding part and the edge shielding part, better physical isolation can be formed between the passive board 251 of the antenna 250 and the main board 240, thereby improving the sensitivity of the passive board 251 of the antenna 250 and the main board 240 in their respective operations.

[0083] Optionally, the shielding layer 270 may be a copper layer.

[0084] Considering that copper is also used on the original printed circuit board 210 , the copper layer in the embodiment of the present application no longer functions as the copper in the conventional printed circuit board 210 . The copper layer in the embodiment of the present application is used to form a shielding layer 270 .

[0085] In order to facilitate the carrying of the measuring device 200 and ensure the safety of the internal components of the measuring device 200, the measuring device 200 in this embodiment may further include: a first housing 220 and a second housing 230.

[0086] The first housing 220 is disposed on a first surface of the printed circuit board 210 ; the second housing 230 is disposed on a second surface of the printed circuit board 210 .

[0087] Optionally, an edge of the second shell 230 contacts the shielding layer 270 .

[0088] Exemplarily, the second shell 230 may be in contact with the edge shielding portion of the shielding layer 270 , and the second shell 230 and the edge shielding portion of the shielding layer 270 may form a closed accommodation space, thereby better protecting the components in the second shell 230 .

[0089] Optionally, a mounting hole 211 may be further provided on the printed circuit board 210 , and the first housing 220 and the second housing 230 may be connected to the printed circuit board 210 through the mounting hole 211 .

[0090] Optionally, the measuring device 200 may further include: a chemical battery 260 .

[0091] The chemical battery 260 can be installed in the second housing 230 ; the chemical battery 260 can also be installed in the first housing 220 .

[0092] The chemical battery 260 is used to supply power to various components of the measuring device 200 .

[0093] Optionally, a battery management module 242 may be further provided on the second side of the printed circuit board 210 , and the battery management module 242 is used to control and manage the power source formed by the chemical battery 260 .

[0094] The measuring device 200 in this embodiment uses a chemical battery 260 as a power supply battery, which can further reduce the size of the measuring device 200 .

[0095] In order to conveniently present the status of the measuring device 200 to the user, the measuring device 200 may further include an interactive panel. The interactive panel is electrically connected to the mainboard 240 .

[0096] Exemplarily, a button may also be provided on the interactive panel, and the button is used to start the measuring device 200 or shut down the measuring device 200 .

[0097] The interactive panel may also be provided with a display panel, which is used to display the data measured by the measuring device 200 .

[0098] Optionally, an indicator light may be provided on the measuring device 200 to mark the working state of the measuring device 200. For example, when the indicator light is green, it indicates that the measuring device 200 is in a fully charged state; for another example, when the indicator light is green, it indicates that the measuring device 200 is in a low power state.

[0099] Optionally, the measuring device 200 may also be provided with a connection interface. Exemplarily, the connection interface may be used to charge and discharge the measuring device 200. Exemplarily, the connection interface may also be used to connect with other electronic devices for data transmission.

[0100] The connection interface can be a type-C interface, a USB interface, etc.

[0101] The surveying device 200 in this embodiment can be an RTK surveying device. The RTK surveying device adopts RTK positioning technology to realize the positioning of the measured object. The data required by the RTK positioning technology includes: the data received by the RTK surveying device itself from the satellite, and the satellite correction data. The satellite correction data can also be called differential data. The RTK surveying device can receive the differential data sent by the base station by wireless communication.

[0102] Based on the above requirements, a communication module 244 may also be provided on the main board 240 of the printed circuit board 210 of the measuring device 200 in this embodiment.

[0103] The communication module 244 is used to receive or send differential data.

[0104] The communication module 244 can be a data transmission radio or a wireless communication module.

[0105] In the measuring device 200 in the embodiment of the present application, since the electronic materials adopt highly integrated intelligent modules, the types and quantities of electronic materials are reduced, so fewer materials are required, so that the size of the measuring device 200 is relatively smaller.

[0106] Furthermore, since shielding components such as the shielding cover and the shielding layer 270 are provided, the reliability and sensitivity of the measuring device 200 can be higher, and the failure rate can be reduced by about 10%.

[0107] Furthermore, since the measuring device 200 provided in the embodiment of the present application does not need a bracket to isolate the antenna 250 and the mainboard 240, the size of the measuring device 200 can be made smaller. Furthermore, since the mainboard 240, the antenna 250 and the printed circuit board 210 are combined into one component, the overall height of the measuring device 200 in the embodiment of the present application can be reduced by 1 to 2 cm compared to the conventional RTK receiver device, and the volume is reduced. The total weight of the measuring device 200 can be reduced by about 200g, making it more convenient for relevant staff to carry.

[0108] Through the above-mentioned structural setting, the assembly process of the measuring device 200 can be simplified and the assembly time can be saved; the operation of the measuring device 200 provided by the embodiment of the present application is also more portable.

[0109] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0110] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A measuring device, characterized in that: include: A printed circuit board, an antenna, a mainboard, a first shielding cover, a shielding layer, a first housing and a second housing; The antenna includes a passive board and a radio frequency circuit; The passive board is arranged on the first surface of the printed circuit board, and the first housing cover is arranged on the first surface of the printed circuit board; The radio frequency circuit is arranged on the second surface of the printed circuit board; The mainboard is arranged on the second surface of the printed circuit board, the second housing cover is arranged on the second surface of the printed circuit board, and the edge of the second housing contacts the shielding layer; The shielding layer is arranged between the first surface of the printed circuit board and the second surface of the printed circuit board; The first shielding cover is arranged on the second surface of the printed circuit board, and the radio frequency circuit is arranged in the first shielding cover; The shielding layer comprises: an inner shielding portion and an edge shielding portion; The inner shielding portion is arranged between the first surface of the printed circuit board and the second surface of the printed circuit board; The edge shielding portion is wrapped around the edge of the printed circuit board and communicated with the inner shielding portion; wherein the second shell contacts the edge shielding portion of the shielding layer, and the second shell and the edge shielding portion form a closed accommodating space.

2. The measuring device according to claim 1, characterized in that Also includes: A second shielding cover; The second shielding cover is disposed on the second surface of the printed circuit board, and the main board is disposed in the second shielding cover.

3. The measuring device according to claim 1, characterized in that An intelligent module is arranged on the main board; The intelligent module includes: a communication unit and a core function unit.

4. The measuring device according to claim 1, characterized in that Also includes: A chemical battery is installed in the second housing or the first housing.

5. The measuring device according to claim 1, characterized in that Also includes: Interactive panels; The interactive panel is electrically connected to the main board.

6. The measuring device according to claim 1, characterized in that A positioning module is also integrated on the main board.

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