CN104880203A - Fixture for testing strap-down inertial system products - Google Patents
Fixture for testing strap-down inertial system products Download PDFInfo
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- CN104880203A CN104880203A CN201510276190.4A CN201510276190A CN104880203A CN 104880203 A CN104880203 A CN 104880203A CN 201510276190 A CN201510276190 A CN 201510276190A CN 104880203 A CN104880203 A CN 104880203A
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- strap
- inertial system
- down inertial
- system product
- interface
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
- G01C25/005—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass initial alignment, calibration or starting-up of inertial devices
Abstract
The invention provides a fixture for testing strap-down inertial system products. The fixture comprises a wireless data transmission module, a USB concentrator, an I/O module, and the strap-down inertial system products, wherein a plurality of interfaces are arranged on the wireless data transmission module; a first communication interface is arranged at one end of the USB concentrator; a second communication interface is arranged at the other end of the USB concentrator; the USB concentrator is connected with the interfaces of the wireless data transmission module through the first communication interface; a USB interface is arranged at one end of the I/O module; a plurality of conversion interfaces are arranged at the other end of the I/O module; the I/O module is connected with the second communication interface of the USB concentrator through the USB interface; a third communication interface is arranged on each strap-down inertial system product, and communicated with one corresponding conversion interface of the I/O module through a connecting wire. According to the fixture, a USB server (system) is utilized for solving the problems caused by the USB impedance requirements through wireless network communication.
Description
Technical field
The present invention relates to a kind of test fixture, particularly relate to a kind of fixture of test strap-down inertial system product in enormous quantities.
Background technology
Along with MEMS technology is more and more ripe, the volume of MEMS sensor is more and more less, thus the volume of the strap-down inertial system product using MEMS sensor integrated is also more and more less, because strap-down inertial system product consumption is increasing, therefore, bring stern challenge to the inertia compensation test table of strap-down inertial system production manufacturer: strapdown inertia system product simultaneously in the limited amount of inertia compensation test table test in the interface of testing apparatus, thus the on-line testing of typical products in mass production simultaneously cannot be realized, and the versatility of test fixture and extendability poor.
Current test fixture and strap-down inertial system product one_to_one corresponding, which results in simultaneously in time testing multiple product, need more test fixture and communication interface.Normal conditions utilize the mode of USB Hub to solve this problem.As everyone knows, extensive USB Hub generally adopts the mode of externally fed, so the batch testing fixture proposed in common scheme in fact out with regard to two lines, a USB line, a power lead, but USB line impedence wherein requires 90ohm coupling, and the interface of inertia compensation test table is generally adopt general brush pattern (slip ring), this pattern, except not meeting except resistance requirements, also can add a lot of noise because of the structure of brush.
Therefore, be necessary to do further improvement to prior art.
Summary of the invention
The object of the invention is to utilize USB server to solve the Problems existing because of USB resistance requirements by wireless network communication.
For reaching aforementioned object, a kind of fixture testing strap-down inertial system product of the present invention, it comprises:
Wireless data transmission module, it is provided with several interfaces;
Usb hub, its one end arranges the first communication interface, and the other end arranges second communication interface, and described usb hub is connected with the interface of described wireless data transmission module by described first communication interface;
I/O module, its one end arranges USB interface, and the other end is provided with some translation interfaces, and described I/O module is connected with the second communication interface of described usb hub by described USB interface;
Strap-down inertial system product, it is provided with third communication interface, and described third communication interface is connected with a translation interface in described I/O module by connecting line.
As the present invention's preferred embodiment, the data that the data of described wireless data transmission module collection strap-down inertial system product, forwarding gather are to base station, described base station receives test data that described wireless data transmission module sends and sends control command to described wireless data transmission module, described wireless data transmission module sends control command to described usb hub, described usb hub sends control command to described I/O module, and last I/O module sends control command to described strap-down inertial system product.
As the present invention's preferred embodiment, described wireless data transmission module supports WIFI, zigbee or BLE wireless communication technique
As the present invention's preferred embodiment, described translation interface comprise in SPI, UART, RS232, RS422, RS485, I2C, ARINC429, CAN and analog quantity one or more.
As the present invention's preferred embodiment, the model of the interface of described usb hub comprises USB2512, USB2513, USB2514 and USB2517.
As the present invention's preferred embodiment, an interface of described wireless data transmission module has a daisy chain,
Described daisy chain comprises father's usb hub and multiple sub-usb hub, and wherein first communication interface of father's usb hub is connected with an interface of described wireless data transmission module,
Every first communication interface of sub-usb hub is connected with first communication interface of the sub-usb hub of upper level or father's usb hub, each second communication interface of each usb hub is connected with corresponding I/O module, and the translation interface of each I/O module is connected with the third communication interface of described strap-down inertial system product.
As the present invention's preferred embodiment, the third communication interface of described strap-down inertial system product is SPI, UART, RS232, RS422, RS485, I2C, ARINC429 or CAN.
As the present invention's preferred embodiment, described wireless data transmission module is multiple, and described multiple wireless data transmission module and described base station form star-like wireless network.
As the present invention's preferred embodiment, described wireless data transmission module is also provided with indicating device.
Beneficial effect of the present invention: compared with prior art, the invention solves the on-line testing problem in enormous quantities of strap-down inertial system product, this fixture is the test fixture scheme based on wireless network technologies, wireless mode solves complexity and the difficulty of wiring, greatly reduce wiring cost, and reduce the noise of inertia compensation test table interface, an inertia compensation test table can be solved further and once test strap-down inertial system product in enormous quantities simultaneously, can also once monitor multiple inertia compensation test tables test job state together simultaneously.Test fixture of the present invention not only substantially increases plant produced efficiency, has saved the cost of inertia compensation test table equipment and wiring, and enhances versatility and the extendability of test fixture, solves the Problems existing because of USB resistance requirements.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the fixture of test strap-down inertial system product of the present invention;
Fig. 2 is the I/O modular structure block diagram of connection strap-down inertial system product of the present invention;
Fig. 3 is the mode of operation schematic diagram of star-like wireless network of the present invention;
Fig. 4 is the syndeton schematic diagram of the fixture of test strap-down inertial system product of the present invention;
Fig. 5 is the communication mode structured flowchart of the fixture of test strap-down inertial system product of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Alleged herein " embodiment " or " embodiment " refers to special characteristic, structure or the characteristic that can be contained at least one implementation of the present invention.Different local in this manual " in one embodiment " occurred not all refers to same embodiment, neither be independent or optionally mutually exclusive with other embodiments embodiment.
Refer to Fig. 1, it tests the structured flowchart of the fixture of strap-down inertial system product for the present invention, described fixture S2 it comprise the strap-down inertial system product S24 of wireless data transmission module S21, usb hub (USB hub) S22, I/O module S23 and various interface.
Described wireless data transmission module S21, it is provided with several interfaces (not shown).
Described usb hub S22, its one end arranges the first communication interface (not shown), the other end arranges second communication interface (not shown), and described usb hub S22 is connected by the interface of described first communication interface with described wireless data transmission module S21.
Described I/O module S23, its one end arranges USB interface S231, and the other end is provided with some translation interface S234, and described I/O module S23 is connected with the second communication interface of described usb hub S22 by described USB interface S231.
Described strap-down inertial system product S24, it is provided with third communication interface (not shown), and described third communication interface is connected with a translation interface S234 in described I/O module S23 by connecting line.
In this fixture, described wireless data transmission module S21 is called for short node, and this node S21 supports the wireless telecommunications such as WIFI or zigbee or BLE (low-power consumption bluetooth), adopts multiplexing technique, there is provided more than 4 standard USB port, each USB port connects a usb hub S22.This node S21 major function is the transmission of responsible data, gathers the data of multiple strap-down inertial system product S24, forwards the data of collection to base station S1, transmission order downwards and fitting data to the strap-down inertial system product S24 of correspondence.Each node S21 has unique node ID number, and in whole wireless network, node ID number is exactly the unique identity card of this node, is also the unique identities identification of this fixture.The S1 of base station described in the present invention supports the wireless communication techniques such as WIFI or zigbee or BLE (low-power consumption bluetooth), its major function is responsible for gathering test data that each node sends and sends control command to each node, control command is sent to usb hub S22 again by node, USB Hub S22 sends control command to I/O module S23, the test data that last I/O module S23 transmission control command obtains to strap-down inertial system product S24, base station S1 also responsible preservation and parsing, drafting and printing test report.
In one embodiment, described wireless data transmission module S21 is also provided with indicating device (not shown).
Refer to Fig. 2, it is the I/O modular structure block diagram of connection strap-down inertial system product of the present invention.As depicted in figs. 1 and 2, described I/O module S23 is the abbreviation of INPUT and OUTPUT module.Described I/O module S23 is the passage that this test fixture connects the interface input/output information of strap-down inertial system product, one end is with USB interface S231, conveniently be connected with other USB Hub S22 of upper level, the other end is with various translation interface S234, described translation interface S234 can be: SPI, UART, RS232, RS422, RS485, I2C, ARINC429, CAN, analog quantity and other interfaces, as shown in Figure 2, these translation interfaces S234 interface corresponding to strap-down inertial system product S24 is interconnected, be responsible for directly communicating with strap-down inertial system product S24.The USB interface S231 of described I/O module S23 is connected with central processing module (CPU) S232, and the control command that described I/O module S23 receives is issued usb hub S22 or strap-down inertial system product S24 by USB interface S231 by described central processing module S232.
Described usb hub S22 is the hub (Hub) with multiple standard USB interface, the connecter type of the usb hub S22 of this fixture support at present has USB2512, USB2513, USB2514, USB2517 and other model, and its standard USB interface number is respectively: 2,3,4, more than 7 and 7.Described USB hub, mainly plays the effect of usb hub, and object is to connect more strap-down inertial system product, classification can connect USB Hub.The third communication interface (not shown) of described strap-down inertial system product is SPI, UART, RS232, RS422, RS485, I2C, ARINC429 or CAN.Each strap-down inertial system product S24 has No. SN unique separately (Serial Number, be called for short SN), this No. SN is its unique I.D., by these No. SN, we can distinguish the product of each test, in conjunction with product of node ID (Ident ity, be called for short ID) number just each test of clearer differentiation in which fixture, namely in which inertia compensation test table.
Refer to Fig. 4, it is the syndeton schematic diagram of the fixture of test strap-down inertial system product of the present invention.As shown in Figure 4.An interface of described wireless data transmission module S21 has a daisy chain.Described daisy chain comprises father's usb hub S221 and multiple sub-usb hub S221, S222Sn (wherein n is integer), and wherein first communication interface of father's usb hub S221 is connected with an interface of described wireless data transmission module S21.Every first communication interface of sub-usb hub is connected with first communication interface of the sub-usb hub of upper level or father's usb hub, each second communication interface of each usb hub is connected with corresponding I/O module S23, and the translation interface of each I/O module S23 is connected with the third communication interface of described strap-down inertial system product S24.
When product test to be measured in enormous quantities, each inertia compensation test table is placed the fixture of such test strap-down inertial system product in enormous quantities, each fixture comprises a unique wireless data transmission module S21, the node that each fixture is equivalent in a radio sensing network can be defined, if any multiple inertia compensation test table, just indicate multiple node, multiple node and base station form a star-like wireless network automatically.Refer to Fig. 3, it is the mode of operation schematic diagram of star-like wireless network of the present invention.In this embodiment, described wireless data transmission module S21 is multiple, and described multiple wireless data transmission module S21 and described base station S1 forms star-like wireless network.
Refer to Fig. 5, it is the communication mode structured flowchart of the fixture of test strap-down inertial system product of the present invention.As shown in Figure 5, power on, run fixture, first inquire about and whether there is this fixture in wireless network, if do not existed, the fixture newly added automatically is applied for and is added in this wireless network.After adding network, whether can be connected with father USB Hub by Automatic inquirying, if any, fixture can send handshaking information downwards successively, inquires about sub-USBHub, counter++, sub-USB Hub is not had until inquire, otherwise whether inquire about this USB Hub has I/O model calling, if any I/O module, just whether inquiry has strap-down inertial system product to be connected in this I/O module, connect if any strap-down inertial system product, give a green light, and according to corresponding communications protocol group Packet Generation to base station.As this I/O module does not have strap-down inertial system product to connect, send out a warning, also send packet to base station.Base station also downwards send order and fitting data to the strap-down inertial system product of correspondence.
The present invention, according to No. SN of each strap-down inertial system product, each strap-down inertial system product can uniquely can identify in whole star-like wireless sensor network, node ID number can allow each fixture uniquely identify in whole star-like wireless sensor network, thus divide in whole star-like wireless network intermediate energy region and identify each inertia compensation test table, and each fixture has a unique virtual ID in a database.This virtual ID is the number of 64, and every 8 is a field, respectively: node ID number+No. D, the port numbers+I/O module I+USB Hub degree of depth+No. SN, strap-down inertial system product.Each USB Hub reports the data of the degree of depth, No. D, I/O module I, No. SN, strap-down inertial system product and the strap-down inertial system product needing to report USB Hub when oneself strap-down inertial system product information.Radio node reported data Bao Shihui adds node ID number and port information.Base station can be resolved and be generated unique ID number and No. SN, the strap-down inertial system product of each I/O module from node data bag.Here I/O module also supports plug and play.
This programme solves the on-line testing problem in enormous quantities of strap-down inertial system product, this fixture is the test fixture scheme based on wireless network technologies, wireless mode solves complexity and the difficulty of wiring, greatly reduce wiring cost, and reduce the noise of inertia compensation test table interface, an inertia compensation test table can be solved further and once test strap-down inertial system product in enormous quantities simultaneously, can also once monitor multiple inertia compensation test tables test job state together simultaneously.Test fixture of the present invention not only substantially increases plant produced efficiency, has saved the cost of inertia compensation test table equipment and wiring, and enhances versatility and the extendability of test fixture, solves the Problems existing because of USB resistance requirements.
Above-mentioned explanation fully discloses the specific embodiment of the present invention.It is pointed out that the scope be familiar with person skilled in art and any change that the specific embodiment of the present invention is done all do not departed to claims of the present invention.Correspondingly, the scope of claim of the present invention is also not limited only to previous embodiment.
Claims (9)
1. test a fixture for strap-down inertial system product, it is characterized in that: it comprises:
Wireless data transmission module, it is provided with several interfaces;
Usb hub, its one end arranges the first communication interface, and the other end arranges second communication interface, and described usb hub is connected with the interface of described wireless data transmission module by described first communication interface;
I/O module, its one end arranges USB interface, and the other end is provided with some translation interfaces, and described I/O module is connected with the second communication interface of described usb hub by described USB interface;
Strap-down inertial system product, it is provided with third communication interface, and described third communication interface is connected with a translation interface in described I/O module by connecting line.
2. the fixture of test strap-down inertial system product according to claim 1, it is characterized in that: the data that the data of described wireless data transmission module collection strap-down inertial system product, forwarding gather are to base station, described base station receives test data that described wireless data transmission module sends and sends control command to described wireless data transmission module, described wireless data transmission module sends control command to described usb hub, described usb hub sends control command to described I/O module, and last I/O module sends control command to described strap-down inertial system product.
3. the fixture of test strap-down inertial system product according to claim 2, is characterized in that: described wireless data transmission module supports WIFI, zigbee or BLE wireless communication technique.
4. the fixture of test strap-down inertial system product according to claim 1, is characterized in that: described translation interface comprise in SPI, UART, RS232, RS422, RS485, I2C, ARINC429, CAN and analog quantity one or more.
5. the fixture of test strap-down inertial system product according to claim 1, is characterized in that:
The model of the interface of described usb hub comprises USB2512, USB2513, USB2514 and USB2517.
6. the fixture of test strap-down inertial system product according to claim 1, is characterized in that:
An interface of described wireless data transmission module has a daisy chain,
Described daisy chain comprises father's usb hub and multiple sub-usb hub, and wherein first communication interface of father's usb hub is connected with an interface of described wireless data transmission module,
Every first communication interface of sub-usb hub is connected with first communication interface of the sub-usb hub of upper level or father's usb hub, each second communication interface of each usb hub is connected with corresponding I/O module, and the translation interface of each I/O module is connected with the third communication interface of described strap-down inertial system product.
7. the fixture of test strap-down inertial system product according to claim 1, is characterized in that: the third communication interface of described strap-down inertial system product is SPI, UART, RS232, RS422, RS485, I2C, ARINC429 or CAN.
8. the fixture of test strap-down inertial system product according to claim 1, it is characterized in that: described wireless data transmission module is multiple, described multiple wireless data transmission module and described base station form star-like wireless network.
9. the fixture of test strap-down inertial system product according to claim 1, is characterized in that: described wireless data transmission module is also provided with indicating device.
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| CN201510276190.4A CN104880203B (en) | 2015-05-26 | 2015-05-26 | A kind of fixture for testing strap-down inertial system product |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2565209Y (en) * | 2002-08-13 | 2003-08-06 | 旺讯科技股份有限公司 | Concentrator with wireless communication function |
| US6725302B1 (en) * | 1999-09-23 | 2004-04-20 | International Business Machines Corporation | Universal serial bus (USB) with wireless communication hubs |
| CN103249178A (en) * | 2012-02-09 | 2013-08-14 | 美新微纳传感系统有限公司 | Wireless sensor network system |
| CN203722830U (en) * | 2013-12-17 | 2014-07-16 | 美新微纳传感系统有限公司 | Transmission system of wireless sensing network sensors |
| CN103994778A (en) * | 2014-05-22 | 2014-08-20 | 美新微纳传感系统有限公司 | Test method of strapdown inertial integrated navigation system |
| CN104535799A (en) * | 2014-12-29 | 2015-04-22 | 杭州士兰微电子股份有限公司 | Testing device and method for inertial sensor |
-
2015
- 2015-05-26 CN CN201510276190.4A patent/CN104880203B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6725302B1 (en) * | 1999-09-23 | 2004-04-20 | International Business Machines Corporation | Universal serial bus (USB) with wireless communication hubs |
| CN2565209Y (en) * | 2002-08-13 | 2003-08-06 | 旺讯科技股份有限公司 | Concentrator with wireless communication function |
| CN103249178A (en) * | 2012-02-09 | 2013-08-14 | 美新微纳传感系统有限公司 | Wireless sensor network system |
| CN203722830U (en) * | 2013-12-17 | 2014-07-16 | 美新微纳传感系统有限公司 | Transmission system of wireless sensing network sensors |
| CN103994778A (en) * | 2014-05-22 | 2014-08-20 | 美新微纳传感系统有限公司 | Test method of strapdown inertial integrated navigation system |
| CN104535799A (en) * | 2014-12-29 | 2015-04-22 | 杭州士兰微电子股份有限公司 | Testing device and method for inertial sensor |
Non-Patent Citations (1)
| Title |
|---|
| 马超: ""多惯组脉冲输出同步计数与标定系统设计"", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
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