CN214427616U

CN214427616U - GNSS receiver

Info

Publication number: CN214427616U
Application number: CN202120405787.5U
Authority: CN
Inventors: 文超; 杨明; 陈武广
Original assignee: Zhongdianke Northwest Group Co ltd
Current assignee: Zhongdianke Northwest Group Co ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-10-19
Anticipated expiration: 2031-02-24

Abstract

The application discloses GNSS receiver belongs to the satellite navigation field, can solve the installation comparison dispersion of each inside part of current GNSS receiver, leads to the not compact, the inside more problem of walking the line of receiver structure. The GNSS receiver has a hexahedron shell, and the shell comprises a lower cover plate and a rear panel; the interface board, the main board and the board card are all arranged in the inner cavity of the shell; the interface board is arranged on the rear panel in parallel, the main board is arranged on the lower cover plate in parallel, and the board card is arranged on one side of the main board far away from the lower cover plate in parallel; one end of the interface connector is arranged on the rear panel, and the other end of the interface connector is arranged on the interface board; the rectangular connector is arranged on one side of the interface board, which is far away from the rear panel, and is electrically connected with the interface connector through a printed circuit; the rectangular connector and the board card are respectively electrically connected with the mainboard. The receiver of the embodiment of the application can realize the integration and modularization of each internal part.

Description

GNSS receiver

Technical Field

The application relates to the technical field of satellite navigation, in particular to a GNSS receiver.

Background

At present, the satellite navigation system can provide all-weather, uninterrupted, real-time and high-precision three-dimensional positioning, three-dimensional speed measurement and accurate time information, so that the satellite navigation system is widely applied. Common satellite navigation systems include the beidou satellite navigation system, GPS, GLONASS, and the like. The GNSS receiver is the basis of satellite navigation positioning technology, and is mainly used for tracking, receiving, processing and outputting GNSS satellite data. The method can be widely applied to the fields of precision measurement, geological survey, time service, agriculture, traffic logistics, military and the like.

The installation of each inside part of present GNSS receiver is more dispersed, leads to the receiver structure not compact, and inside is walked the line more, and whole volume is great.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a receiver, which can solve the problems that the receiver structure is not compact and the internal wiring is more due to the fact that the installation of each part in the existing GNSS receiver is dispersed, and meanwhile, different parameter function configurations of the whole GNSS receiver can be achieved through compatible installation of different board cards on a mainboard.

The embodiment of the utility model provides a GNSS receiver, including casing, interface board, mainboard, integrated circuit board, interface connector and rectangular connector; the shell is a hexahedron and comprises a lower cover plate and a rear panel; the interface board, the main board and the board card are all arranged in the inner cavity of the shell; the interface board is arranged on the rear panel in parallel, the main board is arranged on the lower cover plate in parallel, and the board card is arranged on one side of the main board far away from the lower cover plate in parallel; one end of the interface connector is arranged on the rear panel, and the other end of the interface connector is arranged on the interface board; the rectangular connector is arranged on one side of the interface board, which is far away from the rear panel, and is electrically connected with the interface connector through a printed circuit; the rectangular connector and the board card are electrically connected with the mainboard respectively.

In one possible implementation, the housing further includes an upper cover plate; the upper cover plate and the lower cover plate are consistent in shape and respectively comprise a bottom plate, a first side plate and a second side plate; the first side plate and the second side plate are arranged on two opposite sides of the bottom plate and are perpendicular to the bottom plate; the end face of the first side plate is provided with a sliding groove, and the extending direction of the sliding groove is consistent with the extending direction of the first side plate; and the end surface of the second side plate is provided with a convex rail, and the extending direction of the convex rail is consistent with that of the second side plate.

In a possible implementation manner, the opposite surfaces of the first side plate and the second side plate are provided with clamping grooves at the same height, and the extending direction of the clamping grooves is consistent with the extending direction of the first side plate.

In one possible implementation, the upper cover plate and the lower cover plate are made of aluminum profiles.

In a possible implementation manner, the GNSS receiver further includes an indicator light; one end of the indicator light is arranged on the rear panel, and the other end of the indicator light is arranged on the interface board and is electrically connected with the rectangular connector.

In a possible implementation manner, the GNSS receiver further includes a bracket, where the bracket is disposed on a side of the motherboard close to the lower cover plate, and is used to fix the motherboard on the lower cover plate.

In a possible implementation manner, the GNSS receiver further includes a shielding cover, and the shielding cover is disposed on the motherboard and covers the board card.

In a possible implementation manner, the circuit of the main board is provided with different mounting hole positions for mounting the board card and two rectangular interfaces, so that the compatible mounting of the board cards is realized.

The embodiment of the utility model provides an in one or more technical scheme, following technological effect or advantage have at least:

the embodiment of the utility model provides a pair of GNSS receiver, including casing, interface board, mainboard, integrated circuit board, interface connector and rectangular connector. The shell is hexahedron and comprises a lower cover plate and a rear panel. The interface board, the main board and the board card are all arranged in the inner cavity of the shell. The interface board is arranged on the rear panel in parallel, so that the interface board and the rear panel are stacked, the mainboard is arranged on the lower cover plate in parallel, and the board card is arranged on one side of the mainboard, which is far away from the lower cover plate, in parallel, so that the board card and the lower cover plate are stacked, the internal space of the shell is reasonably utilized, and the size of the GNSS receiver is reduced. One end of the interface connector is arranged on the rear panel, and the other end of the interface connector is arranged on the interface board. The rectangular connector is arranged on one side of the interface board far away from the back panel and is electrically connected with the interface connector through a printed circuit. The rectangular connector and the board card are respectively electrically connected with the mainboard. Through the setting of interface board, the quantity of cable when having greatly reduced to connect between the inside part of casing has reduced the inside line of walking of casing, not only makes the volume of GNSS receiver littleer, and the weight is lighter, has increased the reliability of connecting between the part moreover, makes the receiver performance more stable, and the antivibration ability is better. In addition, the GNSS receiver integrates and modularly arranges the mainboard, the board card and the interface connector while realizing the basic functions of the GNSS receiver, has a more compact structure, and realizes the miniaturization and portability of the receiver.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a first schematic diagram illustrating an internal structure of a GNSS receiver according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of an internal structure of a GNSS receiver according to an embodiment of the present disclosure;

fig. 3 is a schematic diagram of an internal structure of a GNSS receiver according to the embodiment of the present application;

FIG. 4 is a fourth exemplary illustration of an internal structure of a GNSS receiver according to an embodiment of the present disclosure;

FIG. 5 is a first perspective view of a GNSS receiver according to an embodiment of the present application;

FIG. 6 is a second perspective view of a GNSS receiver according to an embodiment of the present application;

FIG. 7 is a rear view of a GNSS receiver according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of an interface board according to an embodiment of the present application;

fig. 9 is an assembled structural diagram of components on an interface board according to an embodiment of the present disclosure;

fig. 10 is a schematic structural diagram of a rear panel according to an embodiment of the present application;

FIG. 11 is an assembled structural schematic diagram of components on a rear panel according to an embodiment of the present disclosure;

FIG. 12 is a cross-sectional view of the upper cover plate perpendicular to its extension according to an embodiment of the present application;

FIG. 13 is a cross-sectional view of the lower cover plate perpendicular to its direction of extension provided by an embodiment of the present application;

icon: 1-a shell; 11-a lower cover plate; 111-a backplane; 112-a first side panel; 1121-chute; 1122-card slot; 113-a second side panel; 1131-convex rail; 12-an upper cover plate; 13-a rear panel; 14-a front panel; 15-face frame; 2-an interface board; 3, a main board; 31-a power conversion module; 4, board clamping; 5-an interface connector; 51-a serial port connector; 6-rectangular connector; 7-an indicator light; 8-a scaffold; 9-a shielding case; 10-a sealing gasket; 20-a power supply connector; 30-TNC radio frequency socket.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description of the embodiments of the present invention and simplifying the description, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1 to 7, a GNSS receiver includes a housing 1, an interface board 2, a motherboard 3, a board card 4, an interface connector 5, and a rectangular connector 6. The GNSS (Global Navigation Satellite System) refers to the Global Navigation Satellite System.

As shown in fig. 5 and 6, the case 1 is a hexahedron, and the case 1 includes a lower cover plate 11 and a rear panel 13. Of course, the housing 1 further includes an upper cover plate 12, a front panel 14, and two face frames 15. The shell 1 adopts a split type design, the front panel 14 is fixed with a face frame 15, and a sealing gasket 10 is arranged between the front panel 14 and the face frame 15 so as to improve the sealing performance of the shell 1. The back panel 13 is fixed with another face frame 15, and a sealing gasket 10 is also arranged between the back panel 13 and the face frame 15 to improve the sealing performance of the shell 1. And then the front panel 14, the rear panel 13, the upper cover plate 12 and the lower cover plate 11 are assembled into the shell 1, so that the whole shell 1 is convenient to install and has better protection.

As shown in fig. 1 and 2, the interface board 2, the main board 3, and the board card 4 are disposed in the inner cavity of the housing 1. The interface board 2 is parallel and fixedly arranged on the rear panel 13 through bolts, so that the interface board 2 and the rear panel 13 are stacked, specifically, fasteners such as hexagon studs and the like can be adopted to stack and install the board cards 4, further, the structure of the interface board 2 and the rear panel 13 is more compact, and the space of the inner cavity of the shell 1 is reasonably utilized. The interface board 2 is a PCB board.

Mainboard 3 parallel arrangement is on apron 11 down, and integrated circuit board 4 parallel arrangement is in the one side of apron 11 under keeping away from of mainboard 3 to pile up integrated circuit board 4 and mainboard 3 and place, make integrated circuit board 4 compacter with mainboard 3's structure, further the space of rational utilization casing 1's inner chamber. In practical application, the board 4 and the motherboard 3 are electrically connected by plugging rectangular interfaces. The circuit of the mainboard 3 is provided with different mounting hole sites for mounting the board card 4 and two common rectangular interfaces, so that various board cards 4 can be realized, for example, compatible mounting of the board card 4 for self-research acquisition/reception or an OEM acquisition board card 4 purchased outside can be realized, different configurations and applications of the board card 4 can be realized, different parameter function configurations of the whole machine can be realized, and differentiation and series products can be formed. By way of example, by configuring different board cards 4 for data acquisition/reception, receiver functions with different characteristics can be realized, so as to realize applications of different configurations such as positioning accuracy, measurement accuracy, acquisition frequency point number, anti-interference capability and the like. Of course, the form of the rectangular interface can be changed according to requirements.

As shown in fig. 11, one end of the interface connector 5 is provided on the rear panel 13, and the other end is provided on the interface board 2. The rectangular connector 6 is disposed on a side of the interface board 2 remote from the back panel 13 and is electrically connected to the interface connector 5 by a printed circuit. As shown in fig. 6 and 7, the interface connector 5 includes a serial port connector 51 and the like. Referring to fig. 10, which shows a structural schematic diagram of the back panel 13, on the back panel 13, different boss limits are designed by using a size chain to ensure that the serial connector 51 is welded and installed on the interface board 2 and the serial connector 51 just extends to the maximum position. Fig. 8 shows a schematic structural diagram of the interface board 2, and fig. 9 shows a schematic structural diagram of the interface board 2 with the other end of the interface connector 5 disposed thereon. Specifically, the other end of the interface connector 5 is soldered to the interface board 2 through its pins, and then electrically connected to the rectangular connector 6 through printed wires on the interface board 2, and the rectangular connector 6 is electrically connected to the motherboard 3 through a cable. The rectangular connector 6 realizes the collection of various electric signals and is electrically connected with the mainboard 3, so that the use number of communication cables is greatly reduced.

Present interface connector 5 is connected with mainboard 3 through the cable, occupation space is great, thereby make the volume of receiver great, the embodiment of the utility model provides a receiver, set up interface board 2, weld interface connector 5 on interface board 2 through its pin, interface connector 5 passes through printed circuit and rectangular connector 6 on the interface board 2, the wiring of casing 1 inside has been reduced, this rectangular connector 6 is connected with mainboard 3 again, make the inside quantity that is used for connecting the cable of receiver greatly reduce, make the required space of receiver reduce, the volume of receiver has greatly been reduced, thereby make the receiver portable, simultaneously because the reduction of cable quantity and length, make the receiver use more stable, anti vibration ability is better.

As shown in fig. 4, 6 and 7, the GNSS receiver further includes a power connector 20 and a TNC radio frequency socket 30, and the power connector 20 and the TNC radio frequency socket 30 are respectively disposed on the rear panel 13 and electrically connected to the motherboard 3 through a cable. The external power supply is electrically connected to the main board 3 through the power supply connector 20, thereby achieving power supply input. After original satellite data detected and collected by an external antenna are input to the TNC radio frequency socket 30 through a radio frequency line, the TNC radio frequency socket 30 inputs the data to the main board 3, the main board 3 is transmitted to the board card 4 for data processing, and the main board 3 outputs the processed and converted satellite data to other equipment through the serial port connector 51 or the network port connector, so that the radio frequency input of the original satellite data and the satellite data information output are realized.

The rectangular connector 6 and the board 4 are electrically connected to the motherboard 3, respectively. Specifically, the rectangular connector 6 is electrically connected to the main board 3 by a cable. Mainboard 3 still includes power conversion module 31, and power conversion module 31 is adjacent with integrated circuit board 4, the space of the inner chamber of rational utilization casing 1. The power connector 20 inputs an external high voltage to the motherboard 3, and the power conversion module 31 can convert the input external high voltage into different low voltages according to the demand configuration, and supply power to the board card 4 and the connector for data transmission. The power conversion module is designed in two types, so that different voltage outputs are realized, and for example, common power conversion outputs of 5v and 3.3v can be realized.

The embodiment of the utility model provides a GNSS receiver's casing 1 is the hexahedron, and casing 1 is including lower apron 11 and rear panel 13. The interface board 2, the main board 3 and the board card 4 are all arranged in the inner cavity of the shell 1. The interface board 2 is arranged on the rear panel 13 in parallel, so that the interface board 2 and the rear panel 13 are stacked, the mainboard 3 is arranged on the lower cover plate 11 in parallel, and the board card 4 is arranged on one side of the mainboard 3 away from the lower cover plate 11 in parallel, so that the board card 4 and the lower cover plate 11 are stacked, the internal space of the shell 1 is reasonably utilized, and the volume of the GNSS receiver is reduced. One end of the interface connector 5 is disposed on the rear panel 13, and the other end is disposed on the interface board 2. The rectangular connector 6 is disposed on a side of the interface board 2 remote from the back panel 13 and is electrically connected to the interface connector 5 by a printed circuit. The rectangular connector 6 and the board 4 are electrically connected to the motherboard 3, respectively. Through the setting of interface board 2, the quantity of cable when having greatly reduced to connect between the 1 inside parts of casing has reduced the line of walking of 1 inside of casing, not only makes the volume of GNSS receiver littleer, and the weight is lighter, has increased the reliability of connecting between the part moreover, makes the receiver performance more stable, and the antivibration ability is better. In addition, the GNSS receiver realizes the basic functions of the GNSS receiver, integrates and modularly arranges the mainboard 3, the board card 4 and the interface connector 5, has a more compact structure, and realizes the lightness, miniaturization and portability of the receiver.

As shown in fig. 5, 6, 7 and 8, the housing 1 further includes an upper cover plate 12. As shown in fig. 12 and 13, fig. 12 is a cross-sectional view of the upper cover plate 12 perpendicular to the extending direction thereof, fig. 13 is a cross-sectional view of the lower cover plate 11 perpendicular to the extending direction thereof, and the upper cover plate 12 and the lower cover plate 11 have the same shape and each include a bottom plate 111, a first side plate 112 and a second side plate 113; the first side plate 112 and the second side plate 113 are disposed on two opposite sides of the bottom plate 111 and are perpendicular to the bottom plate 111. A sliding groove 1121 is arranged on the end surface of the first side plate 112, and the extending direction of the sliding groove 1121 is consistent with the extending direction of the first side plate 112; the end surface of the second side plate 113 is provided with a convex rail 1131, and the extending direction of the convex rail 1131 is consistent with the extending direction of the second side plate 113. When the assembly of the internal components of the receiver is completed, the protruding rail 1131 of the upper cover plate 12 slides into the sliding groove 1121 of the lower cover plate 11, and the protruding rail 1131 of the lower cover plate 11 slides into the sliding groove 1121 of the upper cover plate 12, so that the upper cover plate 12 and the lower cover plate 11 can be assembled in a sliding groove type limiting manner, which is convenient and fast.

Referring to fig. 12 and 13, on the opposite surfaces of the first side plate 112 and the second side plate 113, the slots 1122 are disposed at the same height, and the extending direction of the slots 1122 is the same as the extending direction of the first side plate 112. When the installation of the components on the main board 3 is finished, the main board 3 is clamped into the clamping groove 1122, the fixing and limiting installation of the main board 3 can be realized, the fixing effect is good, and the vibration resistance of the receiver is improved.

In practical application, the upper cover plate 12 and the lower cover plate 11 are made of aluminum profiles. On the one hand, the aluminum profile material is easy to obtain and low in cost, the aluminum profile with the shape is purchased and cut according to the required length to be used, the production efficiency of the receiver can be improved, and the production cost is reduced. On the other hand, the aluminum profile is light in weight, the overall weight of the GNSS receiver can be reduced while the strength and the vibration resistance of the whole GNSS receiver are ensured, and therefore the GNSS receiver is convenient to carry.

As shown in fig. 7 and 9, the GNSS receiver further includes an indicator light 7. The indicator light 7 is provided at one end on the rear panel 13 and at the other end on the interface board 2 and electrically connected to the rectangular connector 6. Specifically, on the back panel 13, different boss limits are designed by using a size chain to ensure that the indicator light 7 is mounted on the interface board 2, the indicator light 7 is just flush with the front panel 14, the indicator light 7 is welded on the interface board 2 through pins thereof, and then is electrically connected with the rectangular connector 6 through printed circuits on the interface board 2, so that the wiring inside the housing 1 is further reduced. The rectangular connector 6 is electrically connected with the main board 3, and the power conversion module 31 of the main board 3 supplies power to the indicator light 7 and displays the working state of each component through the indicator light 7. On the one hand, the indicator light 7 can display the operating states of the interface connector 5, the power connector 20 and the TNC radio frequency socket 30, and the indicator light 7 and the interface connector 5 of the receiver of the conventional GNSS are not arranged on the same side, which is very inconvenient for observing the operating states of these components through the indicator light 7. The embodiment of the utility model provides a receiver all sets up pilot lamp 7, interface connector 5, power connector 20 and TNC radio frequency socket 30 on rear panel 13, and the operating condition of these parts is observed while being convenient for outside personnel to install these parts, has also improved the maintainability when the receiver uses simultaneously. On the other hand, current pilot lamp 7 passes through the cable to be connected with mainboard 3, leads to the receiver volume great, and the receiver that this application embodiment provided, with pilot lamp 7 through pin welding to interface board 2 on, rethread printed circuit is connected with rectangular connector 6, can greatly reduce the quantity of cable, further reduced the inside line of walking of casing 1, reduces the volume of receiver, makes the receiver conveniently carry.

In practical application, because there is certain space between mainboard 3 and the lower casing 1, go into mainboard 3 card in draw-in groove 1122 of lower casing 1, can fix mainboard 3, but in order to make mainboard 3 more firm, the GNSS receiver still includes support 8, and support 8 sets up in one side of mainboard 3 that is close to apron 11 down for be fixed in under apron 11 with mainboard 3 on, thereby make mainboard 3 more firm, the vibration resistance of whole receiver is better. Specifically, as shown in fig. 4, the support 8 includes two elongated support members disposed on two sides of the main board 3, and the extending direction of the support members is the same as the extending direction of the main board 3. When the installation of the components on the main board 3 is finished, the two supporting pieces are fixed with the main board 3, the main board 3 is clamped into the clamping groove 1122 of the lower shell 1, and then the supporting pieces are fixed with the lower shell 1, so that the fixing of the main board 3 and the lower shell 1 can be realized.

As shown in fig. 3, the GNSS receiver further includes a shielding cover 9, and the shielding cover 9 is disposed on the motherboard 3 and covers the board card 4, so that the board card 4 can be protected against interference.

As shown in fig. 5 to 7, embodiments of the present invention provide a GNSS receiver having external dimensions of 163mm (width) x 54mm (height) x 183.5mm (length). The bottom of the shell 1 of the GNSS receiver is reserved with a mounting threaded hole, and different accessories can be configured according to use requirements to realize mounting and use of various scenes.

The embodiment of the utility model provides a GNSS receiver's equipment process does: firstly, stacking and installing the main board 3 and the board card 4, stacking and installing the interface board 2, the rear panel 13, the interface connector 5 and the signal lamp, and installing the power connector 20 and the TNC radio frequency socket 30. The main plate 3 is then fixed with the two supports. And then, the main board 3 slides in along the card slot 1122 of the lower cover plate 11, and the rectangular connector 6, the power connector 20 and the TNC radio frequency socket 30 are respectively connected with the main board 3 through cables. Then, the upper cover plate 12 and the lower cover plate 11 are assembled, and the two supporting members are fixed to the lower cover plate 11 by countersunk screws. Finally, the front panel 14, the rear panel 13, the sealing gasket 10 and the face frame 15 are installed.

The embodiment of the utility model provides a GNSS receiver carries out the design of compact lightweight integration with receiver inside, is considering the new receiver of development under comprehensive factors such as heat dissipation, sealing, antivibration, anticorrosion, electromagnetic compatibility and ergonomics. The GNSS receiver has the advantages of small volume, light weight, compact structure, safety, reliability, good heat dissipation and protection performance, convenience in disassembly, assembly and maintenance, vibration resistance, sealing and shielding and the like. And because this GNSS receiver has richened the panel display interface to improve the light usability of receiver, installation convenient to carry has greatly improved the fail safe nature and the life of complete machine, all has very big effect to the promotion of product price/performance ratio and competitiveness.

The embodiments in the present specification are described in a progressive manner, and the same or similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure.

Claims

1. A GNSS receiver is characterized by comprising a shell, an interface board, a mainboard, a board card, an interface connector and a rectangular connector;

the shell is a hexahedron and comprises a lower cover plate and a rear panel;

the interface board, the main board and the board card are all arranged in the inner cavity of the shell; the interface board is arranged on the rear panel in parallel, the main board is arranged on the lower cover plate in parallel, and the board card is arranged on one side of the main board far away from the lower cover plate in parallel;

one end of the interface connector is arranged on the rear panel, and the other end of the interface connector is arranged on the interface board; the rectangular connector is arranged on one side of the interface board, which is far away from the rear panel, and is electrically connected with the interface connector through a printed circuit;

the rectangular connector and the board card are electrically connected with the mainboard respectively.

2. The GNSS receiver of claim 1 wherein the housing further comprises an upper cover;

the upper cover plate and the lower cover plate are consistent in shape and respectively comprise a bottom plate, a first side plate and a second side plate; the first side plate and the second side plate are arranged on two opposite sides of the bottom plate and are perpendicular to the bottom plate;

the end face of the first side plate is provided with a sliding groove, and the extending direction of the sliding groove is consistent with the extending direction of the first side plate; and the end surface of the second side plate is provided with a convex rail, and the extending direction of the convex rail is consistent with that of the second side plate.

3. The GNSS receiver according to claim 2, wherein card slots are provided at positions having the same height on the opposite surfaces of the first side plate and the second side plate, and an extending direction of the card slots is identical to an extending direction of the first side plate.

4. The GNSS receiver of claim 2 or 3, wherein the upper and lower cover plates are made of aluminum profiles.

5. The GNSS receiver of claim 1, further comprising an indicator light;

one end of the indicator light is arranged on the rear panel, and the other end of the indicator light is arranged on the interface board and is electrically connected with the rectangular connector.

6. The GNSS receiver of claim 1, further comprising a bracket disposed on a side of the motherboard adjacent to the lower cover plate for securing the motherboard to the lower cover plate.

7. The GNSS receiver of claim 1 further comprising a shield disposed on the motherboard and covering the board.

8. The GNSS receiver of claim 1, wherein the circuit of the motherboard is provided with different mounting hole locations for mounting the board card and two rectangular interfaces, so as to implement compatible mounting of a plurality of kinds of board cards.