CN216387386U

CN216387386U - GPS test equipment

Info

Publication number: CN216387386U
Application number: CN202121426639.8U
Authority: CN
Inventors: 勾永勤; 曾繁星
Original assignee: TIANHAN TECHNOLOGY (WUJIANG) CO LTD
Current assignee: TIANHAN TECHNOLOGY (WUJIANG) CO LTD
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2022-04-26
Anticipated expiration: 2031-06-25

Abstract

The utility model discloses a GPS test device, comprising: a GPS signal generator; the GPS signal frequency divider is electrically connected with the GPS signal generator; the shielding box devices are internally provided with GPS signal transmitting antennas, and any GPS signal transmitting antenna is electrically connected with the GPS signal frequency divider; GPS vehicle event data recorder, GPS vehicle event data recorder sets up in the shielded cell device, and vehicle event data recorder has seted up the SD draw-in groove including the receiving element who receives GPS signal transmitting antenna transmitted signal on the GPS vehicle event data recorder, and the SD test card that detachable was provided with test program in the SD draw-in groove. According to the utility model, the test program is installed on the SD test card and the SD test card is arranged on each GPS automobile data recorder, so that the test program in each SD test card only needs to test one GPS automobile data recorder, the test pressure of the test program is reduced, the test efficiency can be improved, and the effect of simultaneously measuring a plurality of GPS test devices is realized.

Description

GPS test equipment

Technical Field

The utility model relates to the field of signal testing, in particular to a GPS testing device.

Background

The GPS test equipment is used for detecting the GPS automobile data recorder. The existing GPS test equipment can test the GPS automobile data recorder through a test program in the PC computer only by connecting the PC computer with the tested GPS automobile data recorder. However, in the testing process, because the PC computer needs to test a plurality of GPS automobile data recorders at the same time, the operating pressure of the PC computer is large, and generally, only 3-4 automobile data recorders can be measured at the same time, and increasing the testing number of the automobile data recorders will cause the PC computer to be overloaded and the computer to be down. The test efficiency is low, and the measurement of a plurality of GPS test devices cannot be met.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, embodiments of the present invention provide a GPS testing device, which is used to solve the problems that the testing efficiency is low and the measurement of multiple GPS testing devices cannot be satisfied.

The embodiment of the application discloses: a GPS test device comprising: a GPS signal generator; the GPS signal frequency divider is electrically connected with the GPS signal generator; the shielding box devices are internally provided with GPS signal transmitting antennas, and any one of the GPS signal transmitting antennas is electrically connected with the GPS signal frequency divider; the GPS automobile data recorder is arranged in the shielding box device and comprises a receiving unit for receiving signals transmitted by a GPS signal transmitting antenna, an SD (secure digital) card slot is formed in the GPS automobile data recorder, and an SD test card of a test program is detachably arranged in the SD card slot.

Furthermore, a display unit is arranged on the GPS automobile data recorder, and the display unit can display the test result of the test program.

Further, the display unit includes an LCD liquid crystal panel.

Furthermore, the SD test card is in data connection with a computer so as to check whether the generated GPS signal data meets the product regulation requirements or not on the computer.

Furthermore, a camera unit electrically connected with the GPS automobile data recorder is arranged in the shielding box device.

Further, including the sound unit, the sound unit with GPS vehicle event data recorder electric connection, the sound unit can with the test result voice broadcast of GPS test procedure.

Further, a standard sample is included, and the standard sample is used for checking each shielding box device in a contrast mode.

Further, a jig for fixing the GPS automobile data recorder is arranged in the shielding box device, and the shape of the jig corresponds to that of the GPS automobile data recorder.

Furthermore, a power supply device for the object to be measured is arranged in the shielding box.

Furthermore, the GPS automobile data recorder is in wireless connection with the display unit, the sound unit and the camera shooting unit.

The utility model has the following beneficial effects:

the test program is installed on the SD test card and the SD test card is arranged on each GPS automobile data recorder, so that the test program in each SD test card only needs to test one GPS automobile data recorder, the test pressure of the test program is reduced, the test efficiency can be improved, and the effect of simultaneously measuring a plurality of GPS test devices is realized.

In order to make the aforementioned and other objects, features and advantages of the utility model comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

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

FIG. 1 is a schematic structural diagram of a GPS test device in an embodiment of the present invention;

reference numerals of the above figures: 1. a GPS signal generator; 2. a GPS signal frequency divider; 3. a shielded box device; 4. a GPS vehicle event data recorder; 5. a display unit; 6. a sound unit; 7. an image pickup unit; 8. a jig.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, the GPS testing device of the present embodiment includes:

the GPS signal generator 1, the GPS signal generator 1 can generate GPS signals, thereby being capable of simulating satellite GPS signals which are required to be received by the GPS automobile data recorder 4 in actual use.

The GPS signal frequency divider 2, the GPS signal frequency divider 2 can be electrically connected with the GPS signal generator 1, thereby being capable of receiving the GPS signal generated by the GPS signal generator 1. The GPS signal frequency divider 2 can divide the frequency of the GPS signal received from the GPS signal generator 1, thereby generating a plurality of pieces of GPS signals.

A plurality of shielded cell devices 3 can be provided with GPS signal transmitting antenna (not shown in the figure) in the shielded cell device 3, mutual independence between each shielded cell device 3 to can avoid each shielded cell device 3 inside GPS signal to take place mutual interference, can promote the accuracy of test. Any GPS signal transmitting antenna may be electrically connected to the GPS signal divider 2, so that the GPS signal generated in the GPS signal divider 2 may be transmitted to the GPS signal transmitting antenna in each shielded enclosure apparatus 3.

The GPS automobile data recorder 4, the GPS automobile data recorder 4 can be arranged in the shielding box device 3, and the GPS automobile data recorder 4 can comprise a receiving unit for receiving signals transmitted by the GPS signal transmitting antenna. An SD card slot (not shown in the figure) can be formed on the GPS automobile data recorder 4, and the position of the SD card slot can be adjusted according to actual needs. The SD card slot is detachably provided with an SD test card for testing programs.

In an alternative embodiment, the GPS automobile data recorder 4 is provided with a display unit 5, and the display unit 5 can display the test result of the test program. Through the GPS receiving unit of the GPS automobile data recorder 4, the GPS information data is compared with the standard GPS signal data prestored in the SD test card in real time, and whether each GPS signal data is in the GPS judgment standard range is finally judged: if the GPS signal is in the set GPS signal range, the Pass is displayed on the display unit 5; if the range of the GPS signal is exceeded, Fail is displayed on the display unit 5. Preferably, the display unit 5 includes an LCD liquid crystal panel, so that the display unit 5 can have advantages of energy saving, high display accuracy, and long service life.

In another alternative embodiment, the test is performed by comparing the GPS information data with standard GPS signal data pre-stored in the SD test card by the GPS receiving unit of the GPS tachograph 4. After the test is finished, the test result is stored on the SD test card. And the end button on the GPS tachograph 4 is pressed to end the GPS test. The SD test card can be in data connection with a computer after the test is carried out, so that whether the generated GPS signal data meets the product regulation requirements or not can be checked on the computer: if the requirement is met, the corresponding GPS automobile data recorder 4 flows into the next test station for subsequent detection; if the requirement is not met, the corresponding GPS automobile data recorder 4 is marked as a defective product, the information of the defective product is recorded, and the defective product is placed in a defective product box.

By means of the structure, the test program is installed on the SD test card and the SD test card is arranged on each GPS automobile data recorder 4, so that the test program in each SD test card only needs to test one GPS automobile data recorder 4, the test pressure of the test program is reduced, the test efficiency can be improved, and the effect of simultaneously measuring a plurality of GPS test devices is realized.

Specifically, can be provided with the camera unit 7 with 4 electric connection of GPS vehicle event data recorder in the shielded cell device 3, camera unit 7 can carry out real-time recording when carrying out the GPS test to make camera unit 7 can simulate the electromagnetic wave of camera emission in the in-service use in real time, thereby can carry out anti-electromagnetic interference's test to GPS vehicle event data recorder 4.

Specifically, can include sound unit 6, sound unit 6 can with 4 electric connection of GPS vehicle event data recorder to make 4 test results of GPS vehicle event data recorder can transmit to sound unit 6 in, sound unit 6 can carry out voice broadcast with the test result of GPS test procedure.

In particular, a standard sample may be included, which may be a GPS tachograph 4 known to meet testing standards. Each shielded cell device 3 can be examined to the contrast point to standard sample to verify the inside device environment of each shielded cell device 3, can reduce shielded cell device 3 to the influence of test result, promoted the accuracy of test result.

In the present embodiment, the number of the shielded box devices 3 is 10, and the 10 shielded box devices 3 are numbered 1 to 10 in this order. The point inspection tester carries out environment point inspection on the shielded box device 3 No. 1, and after the point inspection is qualified, the signal tester sets the GPS automobile data recorder 4 in the shielded box device 3 No. 1 for detection. And then, the spot inspection tester performs environment spot inspection on the shielded box device 2, and after the spot inspection is qualified, the signal tester sets the GPS automobile data recorder 4 in the shielded box device 2 for detection. Therefore, point inspection and GPS testing are sequentially carried out on the shielding box device 3, and the testing efficiency of the whole GPS testing equipment is improved.

Specifically, a jig 8 for fixing the GPS automobile data recorder 4 may be provided in each shielding box device 3, and the shape of the jig 8 may correspond to the GPS automobile data recorder 4. Therefore, the GPS automobile data recorder 4 positioned inside the shielding box device 3 can be stably placed, and the influence on the measurement result caused by the movement of the GPS automobile data recorder 4 in the test process can be prevented. In addition, the position of each GPS automobile data recorder 4 after being placed in the shielded box device 3 is also defined by the jig 8, so that each GPS automobile data recorder 4 is located at the same position in the shielded box device 3.

Specifically, a power supply device for the object to be detected is arranged in the shielding box device 3, so that the inside of the shielding box device 3 can supply power to the GPS automobile data recorder 4.

Specifically, be wireless connection between GPS vehicle event data recorder 4 and reality unit, sound unit 6 and the unit 7 of making a video recording to make and avoided too much the interference to GPS test equipment of wiring, make whole GPS test equipment's test accuracy higher.

The principle and the implementation mode of the utility model are explained by applying specific embodiments in the utility model, and the description of the embodiments is only used for helping to understand the method and the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A GPS test device, comprising:

a GPS signal generator;

the GPS signal frequency divider is electrically connected with the GPS signal generator;

the shielding box devices are internally provided with GPS signal transmitting antennas, and any one of the GPS signal transmitting antennas is electrically connected with the GPS signal frequency divider;

the GPS automobile data recorder is arranged in the shielding box device and comprises a receiving unit for receiving signals transmitted by a GPS signal transmitting antenna, an SD (secure digital) card slot is formed in the GPS automobile data recorder, and an SD test card of a test program is detachably arranged in the SD card slot.

2. The GPS test equipment according to claim 1, wherein a display unit is arranged on the GPS automobile data recorder, and the display unit can display the test result of the test program.

3. The GPS test device according to claim 2, wherein the display unit comprises an LCD liquid crystal screen.

4. The GPS test device according to claim 1, wherein the SD test card is in data connection with a computer to check on the computer whether the generated GPS signal data meets product specification requirements.

5. The GPS test equipment according to claim 2, wherein a camera unit electrically connected with the GPS tachograph is arranged in the shielding box device.

6. The GPS test equipment according to claim 5, wherein the GPS test equipment comprises a sound unit, the sound unit is electrically connected with the GPS automobile data recorder, and the sound unit can be used for carrying out voice broadcast on the test result of the GPS test program.

7. The GPS test device according to claim 1, comprising a standard sample for inspecting individual shielded enclosure assemblies against a point.

8. The GPS test equipment according to claim 1, wherein a fixture for fixing the GPS automobile data recorder is arranged in the shielding box device, and the fixture is shaped to correspond to the GPS automobile data recorder.

9. The GPS test device according to claim 1, wherein a device for supplying power to an object to be tested is provided in the shielding box.

10. The GPS test equipment according to claim 6, wherein the GPS tachograph is wirelessly connected with the display unit, the sound unit and the camera unit.