Camera obscura for receiver test

Abstract

The utility model discloses a camera obscura for receiver testing. The camera obscura comprises a box body; a transmitting antenna, wherein the transmitting antenna is arranged in the box body; and the mounting seat is arranged in the box body in a sliding manner and is arranged to be used for mounting a test product. According to the camera obscura for testing the receiver, the transmitting antenna and the mounting base are integrated in the box body, and compared with a darkroom, the camera obscura which is independently designed does not need to be reserved in use and does not have a complicated process, so that the receiving and transmitting signal testing efficiency of the receiver can be improved; the camera obscura is small in overall size and convenient to move, portable design is achieved, a certain number of camera obscura can be customized according to requirements, receiver testing is facilitated, and using is more flexible; when the camera obscura is used for testing, only the cost for manufacturing the camera obscura and the tool cost for fixing different receivers need to be paid, so that the cost is greatly reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to, but is not limited to, the field of receiver testing, and more particularly, to a dark box for receiver testing. BACKGROUND

[0002] The receiver needs to be tested in a darkroom environment before comparison, to ensure that the receiver can normally receive stars, so as to meet the technical requirements. Since the existing darkroom needs to be reserved, the process is complex and inefficient, which affects the project development progress; the existing darkroom occupies a large space and cannot be moved, which cannot meet the demand of flexible use; and a high fee needs to be paid for testing the receiver each time, which wastes a lot of time, manpower, material resources and financial resources. CONTENT OF THE UTILITY MODEL

[0003] The embodiment of the present application provides a dark box for receiver testing, which comprises:

[0004] a box body;

[0005] a transmitting antenna, which is installed in the box body; and

[0006] a mounting seat, which is slidingly installed in the box body and is arranged to mount a test product.

[0007] In some example embodiments, the mounting seat is provided with a movable plate, the movable plate can form a certain angle with the mounting seat, and is arranged to mount the test product.

[0008] In some example embodiments, the movable plate is connected with the mounting seat through two supporting plates, the movable plate is located between the two supporting plates and is rotatably installed to the two supporting plates through a rotating shaft, and a locking mechanism is arranged between the supporting plate and the movable plate, the locking mechanism is arranged to have a locking mode for keeping the movable plate in a stationary state and an unlocking mode for keeping the movable plate in a rotatable state.

[0009] In some example embodiments, the locking mechanism comprises at least one circular-arc-shaped slot arranged on the supporting plate and concentrically arranged around the rotating shaft, at least one screw hole arranged on the end of the movable plate adjacent to the supporting plate, and a fastening screw, the fastening screw is screwed to the screw hole after passing through the circular-arc-shaped slot.

[0010] In some example embodiments, the circular-arc-shaped slot is provided with a plurality of circular-arc-shaped slots, at least part of the circular-arc-shaped slots in the plurality of circular-arc-shaped slots have different radii and are distributed parallel to each other, or at least part of the circular-arc-shaped slots in the plurality of circular-arc-shaped slots are oppositely distributed.

[0011] In some example embodiments, the supporting plate is provided with a scale mark for displaying the rotation angle of the movable plate.

[0012] In some example embodiments, the movable plate is provided with a plurality of fixing portions, some of the plurality of fixing portions are arranged to be fixedly connected with the test product, and different fixing portions of the plurality of fixing portions are arranged to be fixedly connected with the test product to adjust the fixed position of the test product.

[0013] In some example embodiments, one of the bottom of the mounting seat and the box is provided with a guide rail, and the other of the bottom of the mounting seat and the box is provided with a sliding groove, the guide rail and the sliding groove are in sliding fit to adjust the position of the mounting seat.

[0014] In some example embodiments, the guide rail is provided with a plurality of fourth screw holes, the other of the bottom of the mounting seat and the box is provided with a plurality of fifth screw holes, and a fastening screw is screwed into the fourth screw hole through the fifth screw hole to fix the mounting seat after the position is adjusted.

[0015] In some example embodiments, the mounting seat is mounted to the bottom wall of the box, and the transmitting antenna is mounted to the top wall of the box; and / or

[0016] An inner wall surface of the box is provided with a wave-absorbing material; and / or

[0017] The box is provided with a signal input interface and a signal output interface, the signal input interface is electrically connected with the transmitting antenna, and the signal output interface is arranged to be electrically connected with the test product; and / or

[0018] The box is provided with a wire outlet, the movable plate is provided with a wire passing hole, and a serial port wire is arranged to be connected with the test product after passing through the wire outlet and the wire passing hole; and / or

[0019] A supporting leg is arranged below the box; and / or

[0020] The box is provided with a handle; and / or

[0021] A front side wall of the box is rotationally connected with a bottom wall of the box, and the front side wall of the box is detachably connected with a top wall of the box through a lock buckle; and / or

[0022] The box is a rectangular box, and the size of the box does not exceed 500mm in length, 600mm in width, and 750mm in height.

[0023] The receiver testing dark box provided in this application integrates the transmitting antenna and mounting base into the box. Compared with an anechoic chamber, this separately designed dark box eliminates the need for reservations and complex procedures, thus improving the efficiency of receiver signal transmission and reception testing. The dark box is small in size and easy to move, achieving a portable design. A certain number can be customized as needed, facilitating receiver testing and making it more flexible in use. When using this dark box for testing, only the cost of manufacturing the dark box and the cost of tooling for fixing different receivers need to be paid, greatly reducing costs.

[0024] Other features and advantages of this application will be set forth in the following description. Attached Figure Description

[0025] The accompanying drawings are used to provide a further understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0026] Figure 1 This is a three-dimensional structural diagram of the dark box for receiver testing according to an embodiment of this application. Figure 1 ;

[0027] Figure 2 This is a three-dimensional structural diagram of the dark box for receiver testing according to an embodiment of this application. Figure 2 ;

[0028] Figure 3 This is a three-dimensional structural diagram of the dark box for receiver testing according to an embodiment of this application. Figure 3 ;

[0029] Figure 4 for Figure 3 An enlarged schematic diagram of the A-section structure;

[0030] Figure 5 This is a schematic diagram of the mounting base for the receiver testing dark box according to an embodiment of this application;

[0031] Figure 6 This is a schematic diagram showing the usage state of the receiver testing dark box according to an embodiment of this application.

[0032] Figure label:

[0033] 1-Box body, 11-Front side wall, 12-Top wall, 121-Signal input interface, 122-Signal output interface, 123-Lock, 13-Bottom wall, 131-Guide rail, 132-Fourth screw hole, 14-Rear side wall, 15-Left side wall, 151-Cable routing port, 16-Right side wall, 17-Handle;

[0034] 2-Transmitting antenna;

[0035] 31-Mounting base, 311-Support plate, 312-First arc groove, 313-Second arc groove, 314-Third arc groove, 315-Scale marking, 316-Slide groove, 317-Fifth screw hole, 32-Moving plate, 321-First screw hole, 322-Second screw hole, 323-Third screw hole, 324-Fixing part, 325-Wire passage hole, 33-Rotating shaft;

[0036] 4-Outriggers, 5-Receiver. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be arbitrarily combined with each other.

[0038] like Figures 1-6 As shown in the figure, this application embodiment provides a receiver test dark box for testing the satellite reception capability of receiver 5 for combined signals. The receiver test dark box includes: a housing 1, a transmitting antenna 2, and a mounting base 31. The transmitting antenna 2 is installed inside the housing 1, and the mounting base 31 is slidably installed inside the housing 1 and configured to install the test product.

[0039] This application provides a dark box for receiver testing. The box 1 houses a transmitting antenna 2 and a mounting base 31. The mounting base 31 is used to mount the test product (e.g., receiver 5), and the transmitting antenna 2 simulates satellite signals. The transmitting antenna 2 and the mounting base 31 can be arranged relative to each other. For example, the transmitting antenna 2 can be mounted on the top wall 12 of the box 1 (e.g., in the central area of ​​the top wall 12), and the mounting base 31 can be slidably mounted on the bottom wall 13 of the box 1. Of course, the mounting positions of the mounting base 31 and the transmitting antenna 2 are not limited to the top wall 12 and bottom wall 13 of the box 1; they can also be in other positions. When using the dark box, the receiver 5 needs to be fixed at a certain angle to the mounting base 31 according to technical requirements, and power should be supplied to the receiver 5. The transmitting antenna 2 inside the dark box emits signals, and the receiver 5 receives the simulated "satellite signals" and transmits them to the test host to obtain positioning data.

[0040] The receiver testing dark box provided in this application integrates the transmitting antenna 2 and the mounting base 31 within the box 1. Compared to an anechoic chamber, this separately designed dark box eliminates the need for reservations and complex procedures, thereby improving the efficiency of receiver 5 signal transmission and reception testing. The dark box is small in size and easy to move, achieving a portable design. A certain number can be customized as needed, facilitating receiver 5 testing and making its use more flexible. When using this dark box for testing, only the cost of manufacturing the dark box and the cost of tooling for fixing different receivers 5 need to be paid, greatly reducing costs.

[0041] In some example embodiments, as shown in Figures 1-6 The mounting base 31 is provided with a movable plate 32, which can move relative to the mounting base 31, so that the movable plate 32 can form a certain angle with the mounting base 31, and the movable plate 32 is arranged for mounting the test product.

[0042] The movable plate 32 is arranged on the mounting base 31 and can move relative to the mounting base 31, and the receiver 5 is mounted on the movable plate 32. When the movable plate 32 moves, it can drive the test product to move, so as to adjust the position of the receiver 5 relative to the transmitting antenna 2, so that the mounting position of the receiver 5 meets the technical requirements. The test requirement of the product is that the antenna installed inside the test product is perpendicular to the transmitting antenna 2 in the box 1. The internal antennas of different test products are arranged at different positions of the test product. The movable design of the movable plate 32 can realize the movement and / or placement at different angles of the test product, so as to realize the perpendicular correspondence between the internal antenna of the test product and the transmitting antenna 2 in the box 1.

[0043] In some example embodiments, as shown in Figures 1-6 The movable plate 32 is connected to the mounting base 31 through two support plates 311. The mounting base 31 is provided with the support plates 311 on both sides, and the movable plate 32 is located between the two support plates 311 and is rotatably mounted to the two support plates 311 through the rotating shaft 33, and the support plates 311 and the movable plate 32 are provided with a locking mechanism. The locking mechanism is arranged to have a locking mode and an unlocking mode. In the locking mode, the locking mechanism can keep the movable plate 32 in a stationary state; in the unlocking mode, the locking mechanism can keep the movable plate 32 in a rotatable state. Specifically, the mounting base 31 can be provided with vertical support plates 311 on the front and back sides, and the movable plate 32 can be supported between the two support plates 311 through the horizontally arranged rotating shaft 33, so that the movable plate 32 can rotate around the rotating shaft 33, and in turn drive the receiver 5 mounted on the movable plate 32 to rotate, so as to adjust the position of the receiver 5. After the movable plate 32 is rotated to the position (i.e., the mounting position of the receiver 5 meets the technical requirements), the locking mechanism in the locking mode can fasten the movable plate 32 to the support plates 311, and in turn realize the position fixation of the receiver 5, so as to test the receiver 5. When it is needed to adjust the position of the receiver 5, the locking mechanism can be in the unlocking mode, and at this time the movable plate 32 can rotate around the rotating shaft 33, and in turn drive the receiver 5 mounted on the movable plate 32 to rotate.

[0044] In some example embodiments, as shown in Figures 1-6 The locking mechanism includes at least one circular-arc-shaped slot arranged on the support plate 311 and concentrically arranged around the rotating shaft 33, at least one screw hole arranged on the end of the movable plate 32 adjacent to the support plate 311, and a fastening screw. The fastening screw is screwed into the screw hole after passing through the circular-arc-shaped slot.

[0045] The support plate 311 is provided with an arc-shaped slot, and the center of the arc-shaped slot coincides with the rotation axis of the movable plate 32 (i.e., the central axis of the rotating shaft 33), and the end (such as the front and rear ends) of the movable plate 32 adjacent to the support plate 311 is provided with a screw hole. When the receiver 5 is rotated to the position by the movable plate 32, a fastening screw can be used to pass through the arc-shaped slot of the support plate 311 and be screwed into the screw hole of the movable plate 32, so as to fix the movable plate 32 to the support plate 311, and then fix the position of the receiver 5, so as to test the receiver 5.

[0046] As shown in some exemplary embodiments, Figure 4 and Figure 5 The arc-shaped slots are provided in multiple numbers, at least some of the arc-shaped slots in the multiple numbers of arc-shaped slots have different radii and are distributed in parallel to each other, or at least some of the arc-shaped slots in the multiple numbers of arc-shaped slots are oppositely distributed. Specifically, the multiple arc-shaped slots include a first arc-shaped slot 312 and a second arc-shaped slot 313 which are oppositely opened (i.e., oppositely distributed) and have different radii, and the sum of the central angles corresponding to the first arc-shaped slot 312 and the second arc-shaped slot 313 is greater than 360 degrees. Among them, the centers of the first arc-shaped slot 312 and the second arc-shaped slot 313 on the support plate 311 all coincide with the rotation axis of the movable plate 32, and the openings of the first arc-shaped slot 312 and the second arc-shaped slot 313 are opposite but have different radii, and the sum of the central angles corresponding to the first arc-shaped slot 312 and the second arc-shaped slot 313 is greater than 360 degrees, so that there is an overlapping part at both ends of the first arc-shaped slot 312 and both ends of the second arc-shaped slot 313.

[0047] The movable plate 32 is provided with multiple screw holes, and the multiple screw holes include at least one first screw hole 321 corresponding to the first arc-shaped slot 312 and at least one second screw hole 322 corresponding to the second arc-shaped slot 313. Among them, the first screw hole 321 corresponds to the first arc-shaped slot 312, that is, the distance between the first screw hole 321 and the rotation axis of the movable plate 32 is equal to the distance between the first arc-shaped slot 312 and the rotation axis of the movable plate 32, and the first screw hole 321 can be provided with one, two or more; the second screw hole 322 corresponds to the second arc-shaped slot 313, that is, the distance between the second screw hole 322 and the rotation axis of the movable plate 32 is equal to the distance between the second arc-shaped slot 313 and the rotation axis of the movable plate 32, and the second screw hole 322 can be provided with one, two or more.

[0048] After the movable plate 32 is rotated to the position, at least one fastening screw is arranged to pass through the first circular-arc slot 312 and be screwed into the first screw hole 321, and / or at least one fastening screw is arranged to pass through the second circular-arc slot 313 and be screwed into the second screw hole 322. Wherein, when the movable plate 32 drives the receiver 5 to rotate to the position, only the first screw hole 321 can be coincided with the first circular-arc slot 312, at this time, the fastening screw can be used to pass through the first circular-arc slot 312 and be screwed into the first screw hole 321, so as to realize the fastening of the movable plate 32 to the support plate 311, and further realize the position fixation of the receiver 5; or, only the second screw hole 322 can be coincided with the second circular-arc slot 313, at this time, the fastening screw can be used to pass through the second circular-arc slot 313 and be screwed into the second screw hole 322, so as to realize the fastening of the movable plate 32 to the support plate 311, and further realize the position fixation of the receiver 5; or, the first screw hole 321 and the second screw hole 322 can be respectively coincided with the first circular-arc slot 312 and the second circular-arc slot 313, at this time, the fastening screw can be used to pass through the first circular-arc slot 312 and be screwed into the first screw hole 321, and the fastening screw can be used to pass through the second circular-arc slot 313 and be screwed into the second screw hole 322, so as to realize the fastening of the movable plate 32 to the support plate 311, and further realize the position fixation of the receiver 5.

[0049] In some example embodiments, as shown in Figure 4 and Figure 5 The plurality of circular-arc slots further include a third circular-arc slot 314, the openings of the first circular-arc slot 312 and the third circular-arc slot 314 are towards the mounting seat 31, and the third circular-arc slot 314 is inside the first circular-arc slot 312 (i.e. the radii of the first circular-arc slot 312 and the third circular-arc slot 314 are different and are parallelly distributed), and the opening of the second circular-arc slot 313 is away from the mounting seat 31. Wherein, the support plate 311 is further provided with the third circular-arc slot 314, and the opening direction of the third circular-arc slot 314 is the same as that of the first circular-arc slot 312, both are towards the mounting seat 31, and the opening direction of the second circular-arc slot 313 is opposite to that of the third circular-arc slot 314 and the first circular-arc slot 312, away from the mounting seat 31; the radius of the third circular-arc slot 314 can be smaller than that of the first circular-arc slot 312, so that the third circular-arc slot 314 is inside the first circular-arc slot 312. The central angle corresponding to the third circular-arc slot 314 can be arranged to be greater than, less than or equal to the central angle corresponding to the first circular-arc slot 312.

[0050] The plurality of screw holes further include at least one third screw hole 323 corresponding to the third arc-shaped slot 314, and at least one fastening screw is arranged to pass through the third arc-shaped slot 314 and be screwed into the third screw hole 323 after the movable plate 32 is rotated to the position.

[0051] When the movable plate 32 drives the receiver 5 to rotate to the position, the third screw hole 323 can coincide with the third arc-shaped slot 314, and at this time, a fastening screw can be used to pass through the third arc-shaped slot 314 and be screwed into the third screw hole 323, so as to achieve fastening of the movable plate 32 to the support plate 311, and further achieve position fixation of the receiver 5.

[0052] Therefore, the movable plate 32 of the embodiment of the application can be fixed by at least one of a fastening screw passing through the first arc-shaped slot 312 and being screwed into the first screw hole 321, a fastening screw passing through the second arc-shaped slot 313 and being screwed into the second screw hole 322, and a fastening screw passing through the third arc-shaped slot 314 and being screwed into the third screw hole 323.

[0053] Of course, the support plate 311 is not limited to being provided with the first arc-shaped slot 312, the second arc-shaped slot 313, and the third arc-shaped slot 314, and the movable plate 32 is not limited to being provided with the first screw hole 321, the second screw hole 322, and the third screw hole 323; the number of arc-shaped slots and the number of screw holes can also be adjusted according to actual needs.

[0054] In some example embodiments, as shown in Figure 4 and Figure 5 The support plate 311 is provided with a scale mark 315 for displaying the rotation angle of the movable plate 32.

[0055] The side of the support plate 311 away from the movable plate 32 is provided with a scale mark (such as a scale disc) 315, so that the worker adjusts the angle of the movable plate 32 according to the scale mark 315 during testing.

[0056] In some example embodiments, as shown in Figures 2-4 The movable plate 32 is provided with a plurality of fixing portions 324, and part of the plurality of fixing portions 324 is arranged to be fixedly connected with the test product, and different fixing portions 324 of the plurality of fixing portions 324 are arranged to be fixedly connected with the test product to adjust the fixed position of the test product.

[0057] The movable plate 32 is provided with a plurality of fixing portions 324. Only a part of the plurality of fixing portions 324 is used to firmly fix the receiver 5 on the movable plate 32. The receiver 5 is fixed by different fixing portions 324 to adjust the position of the receiver 5 on the movable plate 32, so as to adjust the position of the receiver 5 relative to the transmitting antenna 2, and make the position of the receiver 5 meet the technical requirements.

[0058] The plurality of fixing portions 324 on the movable plate 32 can be used to fix and adjust the position of the receiver 5.

[0059] In some example embodiments, as shown in Figures 2-4 The fixing portion 324 includes a fixing hole, which is arranged to be fixedly connected with the test product by a fastening screw, or is arranged to be fixedly connected with the test product by a bandage.

[0060] The plurality of fixing portions 324 on the movable plate 32 includes a plurality of fixing holes, which can be arranged in a certain rule, such as being arranged in a plurality of circles. A fastening screw passing through the fixing hole can be used to fix the receiver 5 on the movable plate 32, or a bandage passing through the fixing hole can be used to bundle and fix the receiver 5 on the movable plate 32, so as to fix and adjust the angle of the receiver 5.

[0061] In some example embodiments, one of the mounting seat 31 and the box 1 is provided with a guide rail 131, and the other of the mounting seat 31 and the box 1 is provided with a sliding groove 316. The guide rail 131 and the sliding groove 316 are slidably connected to adjust the position of the mounting seat 31. As shown in Figures 2-4 The bottom wall 13 of the box 1 can be provided with the guide rail 131, which can extend in the left-right direction, and the guide rail 131 can be provided with three guide rails 131. The bottom of the mounting seat 31 is provided with the sliding groove 316, and the sliding groove 316 can be provided with three sliding grooves 316. The three guide rails 131 are respectively slidably connected with the three sliding grooves 316, so that the mounting seat 31 can slide left and right relative to the box 1 to adjust the left-right position of the mounting seat 31, and then adjust the left-right position of the receiver 5 on the movable plate 32 of the mounting seat 31, so as to make the position of the receiver 5 meet the technical requirements.

[0062] Of course, the sliding groove 316 can also be arranged on the box 1, and the guide rail 131 can be arranged on the mounting seat 31. The number of the guide rail 131 and the sliding groove 316 is not limited to three, and can also be other numbers.

[0063] In some example embodiments, the guide rail 131 is provided with a plurality of fourth screw holes 132, and the other of the mounting seat 31 and the box 1 (i.e., the mounting seat 31 or the box 1 provided with the sliding groove 316) is provided with a plurality of fifth screw holes 317. A fastening screw is screwed into the fourth screw hole 132 after passing through the fifth screw hole 317 to fix the mounting seat 31 after adjustment. As shown inFigure 4 As shown, the box 1 is provided with the guide rail 131, and a plurality of fourth screw holes 132 are arranged at equal intervals on the guide rail 131; the mounting seat 31 is provided with a sliding groove 316, and a plurality of fifth screw holes 317 are arranged at equal intervals on the mounting seat 31, the interval between adjacent fifth screw holes 317 is equal to the interval between adjacent fourth screw holes 132, and the fifth screw hole 317 can penetrate the sliding groove 316.

[0064] When the mounting seat 31 drives the receiver 5 to slide to the left and right positions, a fastening screw can be used to penetrate the fifth screw hole 317 and then be screwed into the fourth screw hole 132 to fix the left and right positions of the mounting seat 31.

[0065] In some example embodiments, the guide rail 131 provided on the bottom wall 13 of the box 1 and the bottom wall 13 of the box 1 can be an integral structure, or the guide rail 131 can be fixed on the bottom wall 13 of the box 1 by fastening screws or other means.

[0066] The mounting seat 31 can be arranged to adjust the receiver 5 at different angles and positions to meet the testing needs of different test products.

[0067] In some example embodiments, as shown in Figures 1-3 and Figure 6 The box 1 is a rectangular box, and the size of the box 1 does not exceed 500mm*600mm*750mm (wherein the length is the size along the left-right direction, the width is the size along the front-back direction, and the height is the size along the up-down direction).

[0068] The box 1 is a rectangular box, and includes a top wall 12, a bottom wall 13, a left side wall 15, a right side wall 16, a front side wall 11, and a rear side wall 14. The top wall 12, the bottom wall 13, the left side wall 15, the right side wall 16, the front side wall 11, and the rear side wall 14 can be fixed together by fastening screws to form the box 1 of the dark box.

[0069] In order to keep the dark box small and portable, the maximum size of the box 1 can be designed to be within the range of 500mm*600mm*750mm. Specifically, the actual overall size of the box 1 can be designed to be 368mm*404mm*544mm. Of course, the maximum size range of the box 1 is not limited to the above, and can be adjusted according to actual needs.

[0070] In some example embodiments, the inner wall surface of the box 1 is provided with a wave-absorbing material. Among them, the wave-absorbing material is attached to the six inner wall surfaces of the rectangular box to reduce the interference of the environment on the signal during testing.

[0071] In some example embodiments, as shown in Figure 1 , Figure 2 and Figure 6As shown, the box 1 is provided with a signal input interface 121 and a signal output interface 122, the signal input interface 121 is electrically connected with the transmitting antenna 2, and the signal output interface 122 is arranged to be electrically connected with the test product.

[0072] Two radio frequency interfaces can be arranged on the top wall 12 of the box 1, one of which is the signal input interface 121 connected with the transmitting antenna 2 for controlling the transmitting antenna 2 to output analog satellite signals, and the other is the signal output interface 122 connected with the receiver 5 for outputting radio frequency signals to obtain test data.

[0073] In some example embodiments, as shown in Figures 2-4 As shown, the box 1 is provided with a wire port 151, and the movable plate 32 is provided with a wire hole 325, and the serial port wire is arranged to pass through the wire port 151 and the wire hole 325 and then be connected with the test product.

[0074] A small hole (wire port 151) is arranged at the corner of the left side wall 15 of the box 1 for passing the serial port wire to supply power to the receiver 5, etc. A large hole (wire hole 325) is arranged at the center of the movable plate 32 on the mounting seat 31 for passing the serial port wire to connect the serial port wire with the receiver 5.

[0075] In some example embodiments, as shown in Figures 1-3 and Figure 6 The box 1 is provided with a support leg 4.

[0076] Four (or other number) support legs 4 can be arranged below the box 1, which can be fixed on the bottom wall 13 of the box 1 through threads to support the entire concealed box.

[0077] In some example embodiments, as shown in Figure 1 and Figure 6 The box 1 is provided with a handle 17.

[0078] One handle 17 is assembled on each of the left side wall 15 and the right side wall 16 of the box 1 to facilitate carrying and transferring the concealed box.

[0079] In some example embodiments, as shown in Figure 1 , Figure 2 and Figure 6 The front side wall 11 of the box 1 is rotationally connected with the bottom wall 13 of the box 1, and the front side wall 11 of the box 1 is detachably connected with the top wall 12 of the box 1 through a lock catch 123.

[0080] The front side wall 11 of the box 1 is rotationally connected with the bottom wall 13 of the box 1, and the top wall 12 of the box 1 is provided with a lock catch 123, and the front side wall 11 of the box 1 is detachably connected with the top wall 12 of the box 1 through the lock catch 123, which facilitates opening and closing of the front side wall 11 of the box 1 to facilitate installation and removal of the receiver 5.

[0081] As Figures 1-6 shown, the receiver test dark box of the embodiment of the application has a transmitting antenna 2 installed in the center area of the top wall 12 of the box body 1 for simulating satellite transmitting signals; and a mounting seat 31 installed in the bottom wall 13 of the box body 1 for mounting a receiver 5.

[0082] The test of the receiver 5 requires that the internal antenna of the receiver 5 is directly opposite the transmitting antenna 2 at the top of the dark box, as Figure 6 shown, when the internal antenna of the receiver 5 is in an inclined state, the receiver 5 needs to be fixed in the dark box at a certain angle for testing, at this time, the movable plate 32 installed on the mounting seat 31 plays a role.

[0083] The front and rear ends of the movable plate 32 are provided with screw holes (first screw hole 321, second screw hole 322 and third screw hole 323), and the support plates 311 on the front and rear sides of the mounting seat 31 are designed with scale marks 315 indicating the rotation angle, after adjusting the rotation angle of the movable plate 32, the movable plate 32 is fixed tightly using fastening screws to prevent it from rotating; then the receiver 5 is fixed on the movable plate 32, and the left and right positions of the mounting seat 31 are adjusted using the guide rail 131 and the sliding groove 316 structure to keep the internal antenna of the receiver 5 directly opposite the transmitting antenna 2 at the top of the dark box.

[0084] After the lines are connected, the front side wall 11 of the box body 1 of the dark box is closed, and the test begins.

[0085] The receiver test dark box provided by the embodiment of the application has the following advantages:

[0086] 1. The separately designed dark box no longer needs to be reserved and has no complex process, which can improve the efficiency of the receiver 5 signal transmission and reception test;

[0087] 2. The portable design can be customized in a certain number according to the needs, and the use is more flexible;

[0088] 3. The test of the receiver 5 requires that the internal antenna installed therein is directly opposite the transmitting antenna 2 at the top of the dark box, the internal antenna is arranged at different positions at the top end of the receiver 5, and the design of the mounting seat 31 and the movable plate 32 can realize the left and right movement and the placement at different angles of the receiver 5, so as to realize the vertical correspondence between the built-in antenna of the receiver 5 and the transmitting antenna 2 at the top of the dark box, the setting of the mounting seat 31 can realize the adjustment at different angles and positions, and meet the test needs of different test products;

[0089] 4. The small-size dark box meets the test environment of the receiver 5, and can confirm whether the receiver 5 can normally receive the combined signals;

[0090] 5. The design of the guide rail 131 enables different products to be fixed in the dark box through the mounting seat 31, and realizes the test of different test products;

[0091] 6. The box 1 is pasted with wave-absorbing material, simulating the existing darkroom test environment, reducing the interference of the environment on the test signal;

[0092] 7. The handle 17 is added to make it portable and more flexible to use;

[0093] 8. Only the cost of initially manufacturing the dark box and the tooling cost for fixing different receivers 5 are needed, greatly reducing the cost.

[0094] In the description in the present application, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "edge", "opposite", "four corners", "periphery", "mouth" structure" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the structure referred to has a particular orientation, is constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0095] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "connection", "direct connection", "indirect connection", "fixed connection", "installation", "assembly" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; the terms "installation", "connection", "fixed connection" can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0096] In the description of the embodiments of the present application, the term "a plurality of" refers to two or more.

[0097] Although the embodiments disclosed in the present application are as described above, the content described is only the embodiments adopted for the convenience of understanding the present application, and is not intended to limit the present application. Any person skilled in the art can make any modification and change in the form and details without departing from the spirit and scope of the present application, but the patent protection scope of the present application shall be subject to the appended claims.

Claims

1. A dark box for receiver testing, characterized by The utility model relates to a test box for testing product, comprising: a box body; a transmitting antenna mounted in the box body; and a mounting seat slidably mounted in the box body, the mounting seat being provided with a movable plate and being configured to mount a test product, the movable plate being connected to the mounting seat by two support plates, the movable plate being located between the two support plates and being rotatably mounted to the two support plates by a rotating shaft; a locking mechanism being provided between the support plate and the movable plate, the locking mechanism comprising a plurality of circular-arc grooves provided on the support plate and concentrically arranged around the rotating shaft, at least one screw hole provided on the end of the movable plate adjacent to the support plate, and a fastening screw, the fastening screw being screwed into the screw hole after passing through the corresponding circular-arc groove; wherein at least some of the circular-arc grooves have different radii and are arranged in parallel to each other, or at least some of the circular-arc grooves are oppositely arranged and the two ends of the oppositely arranged circular-arc grooves have overlapping portions. The support plate is provided with a scale mark for displaying the rotation angle of the movable plate.

2. The dark box for receiver testing according to claim 1, characterized in that, The movable plate is provided with a plurality of fixing portions, some of the fixing portions being configured to be fixedly connected to the test product, and different fixing portions being configured to be fixedly connected to the test product to adjust the fixed position of the test product.

3. A dark box for receiver testing according to claim 1 or 2, characterized in that One of the mounting seat bottom and the box body is provided with a guide rail, and the other of the mounting seat bottom and the box body is provided with a sliding groove, the guide rail and the sliding groove being slidably matched to adjust the position of the mounting seat.

4. A dark box for receiver testing according to claim 1 or 2, characterized in that The guide rail is provided with a plurality of fourth screw holes, and the other of the mounting seat bottom and the box body is provided with a plurality of fifth screw holes, a fastening screw being screwed into the fourth screw hole after passing through the fifth screw hole to fix the mounting seat after the position is adjusted.

5. A dark box for receiver testing according to claim 4, characterized in that The mounting seat is mounted to the bottom wall of the box body, and the transmitting antenna is mounted to the top wall of the box body; and / or 6. A dark box for receiver testing according to claim 1 or 2, characterized in that The inner wall surface of the box body is provided with a wave-absorbing material; and / or The box body is provided with a signal input interface and a signal output interface, the signal input interface being electrically connected to the transmitting antenna, and the signal output interface being configured to be electrically connected to the test product; and / or The box body is provided with a wiring port, the movable plate is provided with a wire passing hole, and a serial port line is configured to be connected to the test product after passing through the wiring port and the wire passing hole; and / or The box body is provided with a supporting leg below; and / or The box body is provided with a handle; and / or The front side wall of the box body is rotatably connected to the bottom wall of the box body, and the front side wall of the box body is detachably connected to the top wall of the box body by a lock buckle; and / or The box body is a rectangular box body, and the size of the box body does not exceed 500 mm in length, 600 mm in width, and 750 mm in height. ​

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