CN218122130U - Universal metering and testing device - Google Patents
Universal metering and testing device Download PDFInfo
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- CN218122130U CN218122130U CN202222035946.4U CN202222035946U CN218122130U CN 218122130 U CN218122130 U CN 218122130U CN 202222035946 U CN202222035946 U CN 202222035946U CN 218122130 U CN218122130 U CN 218122130U
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Abstract
The utility model relates to a observe and control technical field, concretely relates to general measurement testing arrangement. Including a plurality of rack case, every the rack incasement all is equipped with signal switching equipment and measurement appearance, signal switching equipment includes the bottom plate and pegs graft power strip, mainboard and a plurality of signal board that awaits measuring on the bottom plate, the integration has a plurality of relays in the bottom plate, every the signal board all is connected to the measurement appearance through a relay, the control signal input part of relay passes through the control signal output part of mainboard connection to the host computer. The device can effectively shorten the metering time, solve the problem that the metering work occupies the actual equipment for a long time, and save manpower and material resources.
Description
Technical Field
The utility model relates to a observe and control technical field, concretely relates to general measurement testing arrangement.
Background
Many military model products have metrological certification requirements and the methods of metrological use older methods more than 20 years ago and even earlier. Before metering, products and cables need to be disassembled and assembled, a signal board to be metered is disassembled from a single machine device, a test line is welded at a test position, during metering, a metering instrument is adopted to measure and check the metered signals one by one, the test line is disassembled and the device is recovered after metering is completed, the whole metering process is complex, the method is old, and the efficiency is low.
At present of the rapid development of the automatic measurement technology, the existing metering verification scheme of the actual-packaged product cannot meet the user requirements, improvement and optimization are urgently needed, a general metering testing device is designed, the metering time can be effectively shortened, the problem that the metering work occupies actual-packaged equipment for a long time is solved, and manpower and material resources are saved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a to prior art's defect, provide a general measurement testing arrangement, can effectively shorten the measurement time, solve the problem that measurement work took the equipment of dress for a long time, the material resources of using manpower sparingly.
The utility model discloses a general measurement testing arrangement, including a plurality of rack case, every the rack incasement all is equipped with signal switching equipment and strapping table, signal switching equipment includes the bottom plate and pegs graft power strip, mainboard and a plurality of signal board that awaits measuring on the bottom plate, the integration has a plurality of relays, every in the bottom plate the signal board all is connected to the strapping table through a relay, the control signal input part of relay passes through the control signal output part of mainboard connection to the host computer.
Preferably, the relay is a dual-channel relay, the meter is a dual-channel meter, a first channel of the dual-channel relay is connected to a first channel of the meter through a first radio frequency connector, and a second channel of the dual-channel relay is connected to a second channel of the meter through a second radio frequency connector.
Preferably, the relay is a normally open relay.
Preferably, the signal switching device, the metering instrument and the upper computer are connected with the switch through network cables.
Preferably, the number of the rack boxes is three, one of the rack boxes is internally provided with a power supply, the power supply is an AC/DC power supply, and the power supply is connected to power panels of the three signal switching devices through a one-to-three power supply cable.
Preferably, the upper computer and the switch are respectively arranged in different rack boxes.
Preferably, the rack box comprises a rack box I, a rack box II and a rack box III;
the signal switching equipment and the metering instrument in the rack box I are respectively crystal oscillator signal switching equipment and a frequency meter;
the signal switching equipment and the metering instrument in the rack box II are respectively constant current source signal switching equipment and an ammeter;
and the signal switching equipment and the metering instrument in the rack box III are respectively AD signal switching equipment and a voltage source.
The utility model has the advantages that:
1. the signal switching equipment of this device includes the bottom plate and pegs graft a plurality of signal boards that await measuring on the bottom plate, and the integration has a plurality of relays in the bottom plate, and every signal board all is connected to the measurement appearance through a relay, and the control signal input of relay passes through the control signal output of mainboard connection to the host computer. The on-off of each path of relay is controlled in sequence through the upper computer, so that the measurement of each signal board can be controlled. The metering instrument is not needed to be manually adopted to meter and check the metered signals one by one, the metering time can be effectively shortened, the problem that the metering work occupies the actual equipment for a long time is solved, and manpower and material resources are saved.
2. The double-channel relay and the double-channel meter are adopted, two paths of signals can be measured simultaneously, and the measuring efficiency is further improved.
3. Set up a plurality of rack casees, the parallel processing between the multiple signal can be realized to the different signal switching equipment of every rack incasement and the measurement appearance that corresponds, and the test flexibility is high, and is efficient.
Drawings
FIG. 1 is a schematic view of the connection structure of the present invention;
fig. 2 is the schematic diagram of the relay connection circuit of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Reference throughout this specification to "one embodiment" or "some embodiments," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise. "plurality" means "two or more".
Example one
Fig. 1 shows a schematic structural diagram of a generic metrology testing apparatus provided in a preferred embodiment of the present application (fig. 1 shows a first embodiment of the present application), and for convenience of description, only the relevant parts of the present application are shown, which is detailed as follows:
the utility model provides a general measurement testing arrangement, includes a plurality of rack case, every the rack incasement all is equipped with signal switching equipment and measurement appearance, signal switching equipment includes the bottom plate and pegs graft power strip, mainboard and a plurality of signal board that awaits measuring on the bottom plate, the integration has a plurality of relays in the bottom plate, every the signal board all is connected to the measurement appearance through a relay, the control signal input part of relay passes through the control signal output part of mainboard connection to the host computer. The rack box is also internally provided with an upper computer (such as a notebook computer), a switch, a printer and a test cable.
The signal switching device is used for switching signals to be measured (such as a crystal oscillator, an AD (analog-digital) converter, a constant current source and the like), and the measuring instrument is used for testing the signals. The power supply is used for AC/DC conversion. The switch provides network signals for network communication. The notebook computer is used for installing system software and completing system testing and man-machine interaction. The printer is used for printing the test result. The test cable is used for signal connection. The rack box is used for fixing each device, can be unfolded into a workbench form at any time, has the capabilities of vibration reduction, rain prevention, dust prevention and impact resistance, and is convenient to carry.
In one embodiment, the power supply converts 220V commercial power into DC28V, and supplies power to the signal switching device through a power supply cable;
signals to be detected (a crystal oscillator, an AD (analog-digital) circuit, a constant current source and the like) are arranged on a functional board card, the functional board card is arranged on a bottom plate of signal switching equipment, and the functional board card is connected to a metering instrument through a testing cable after being switched by a relay on the bottom plate;
the metering instrument is connected with the switch through a network cable;
the signal switching equipment is connected with the switch through a network cable;
the notebook computer is connected with the switch through a network cable;
the notebook computer controls the relay of the signal switching equipment through the network communication protocol to realize signal switching, and simultaneously reads the data of the metering instrument and displays the data on the test interface.
The notebook computer is connected with the printer through the U port, and test results can be printed.
The power panel is used for providing voltage signals for the main board and each signal panel and converting the 28V electricity into 5V electricity for the board card; the main board receives an instruction of the notebook computer through the network port, realizes information processing and controls a relay on the bottom board to act; the bottom plate mainly realizes board card connection and signal switching and mainly comprises a connector and a relay.
In one embodiment, the relay is a two-channel relay, the meter is a two-channel meter, a first channel of the two-channel relay is connected to a first channel of the meter by a first radio frequency connector, and a second channel of the two-channel relay is connected to a second channel of the meter by a second radio frequency connector.
In one embodiment, the relay is a normally open relay.
In one embodiment, preferably, there are three rack boxes, one of the rack boxes is provided with a power supply, the power supply is an AC/DC power supply, and the power supply is connected to power panels of three signal switching devices through a three-to-one power supply cable.
In one embodiment, the upper computer and the switch are respectively arranged in different rack boxes.
Example two
This embodiment uses three rack boxes, three different signals: the clock signal, constant current source signal and AD path signal illustrate this scheme.
In this embodiment, the rack box includes a rack box i, a rack box ii, and a rack box iii; the signal switching equipment and the metering instrument in the rack box I are respectively crystal oscillator signal switching equipment and a frequency meter; the signal switching equipment and the metering instrument in the rack box II are constant current source signal switching equipment and an ammeter respectively; and the signal switching equipment and the metering instrument in the rack box III are respectively AD signal switching equipment and a voltage source. All set up 4 signal boards in every rack case, the relay is the binary channels relay, the measurement appearance is the binary channels measurement appearance, and three rack case can carry out measurement test to three kinds of different signals (24 way altogether) simultaneously to the longest time (24 hours) of single-channel signal measurement are measurement cycle, and the test of accomplishing all signals promptly needs 24 hours altogether.
The bottom plate mainly realizes board card connection and signal switching and mainly comprises a connector and a relay. And the multipath signals to be measured are connected to the front ends of the relay contacts.
As shown in fig. 2, 8 paths of 40MHz clock signals are connected to the front ends of 4 dual-channel relay contacts, the rear ends of the 4 relay contacts are connected together and then connected to 2 rf connectors, and the rf connectors are connected to a metering instrument (dual-channel frequency meter) through a test cable (rf cable). When the 1 st path of clock signal is required to be measured, the notebook computer controls the 1 st path of relay to be closed through the mainboard. The first path of signal is transmitted to a measuring instrument, and meanwhile, the notebook computer reads data on the measuring instrument, displays the data on a test interface, records and stores the data; the crystal oscillator metering (clock signal) needs to read 24 hours of data, 1 time is read every 1 hour, after all data reading records are completed, a system program calculates the data to obtain the metering characteristics of signal stability, accuracy and the like, and judges and reads the result.
And when the metering data and the result need to be printed, connecting the printer and printing the test result.
The principle of constant current source signal and AD channel switching is similar to fig. 2.
The utility model discloses a measuring instrument is general measuring instrument commonly used, is the net gape to outer communication interface, can carry out the network configuration.
The power supply is an AC/DC power supply, 220V commercial power is converted into 3 paths of DC28V, and 3 signal switching devices are powered through 1-to-3 power supply cables.
The switch is a common rack switch, supports 20 network ports, and realizes system networking design. The 3 metering instruments, the 3 signal switching devices and the notebook computer are all connected to the switch through network cables;
the notebook computer is used for installing system software and completing system test and man-machine interaction. The printer is used for printing the test result. The test cable is used for signal connection. The communication signal transmission adopts a network cable, the clock signal transmission adopts a coaxial radio frequency cable, and signals such as voltage, current and the like are transmitted by adopting a shielding wire, so that the anti-interference capability of the signal transmission is improved.
The rack box is used for fixing various devices, has the size of 12U, is formed by one-time rotational molding of the shell of the rack box, is internally provided with an aluminum alloy rack with vibration reduction, can be unfolded into a workbench form at any time, has the capabilities of vibration reduction, rain prevention, dust prevention and impact resistance, and is convenient to carry and transport.
A crystal oscillator signal switching device, a switch, a frequency meter and an AC/DC power supply are installed on a rack box I, a constant current source signal switching device and an ammeter are installed on a rack box II, and an AD signal switching device and a voltage source are installed on a rack box III. During testing, the rack box is unfolded into a workbench form and a notebook computer is placed.
This box structural design of frame has solved measurement work and has carried inconveniently when the field operations environment goes on, and the narrow expansion that is unfavorable for in space, test environment builds complicated scheduling problem. The metering and testing device integrates all the testing units into a rack box, has the capabilities of vibration reduction, rain prevention, dust prevention and impact resistance, is convenient to carry and transport, does not need to be additionally provided with a packaging box, and can be unfolded into a workbench form at any time in the field.
The metering test system integrates and assembles all equipment and instruments in a rack box, has the capabilities of vibration reduction, rain prevention, dust prevention and impact resistance, is convenient to carry, does not need to be additionally provided with a packing box, and can be unfolded into a workbench form at any time;
the device solves the problems of various and special test interfaces, complex connection and the like in the old metering method. The system has the advantages that interfaces among all instruments and equipment are unified, parameters of all the instruments are automatically configured as required during testing, and manual adjustment is not needed. All resources in the system are reasonably combined and uniformly managed, and all connection information, test information and the like are displayed on the notebook computer, so that the operation is more convenient and the information display is more visual;
during measurement testing, a tester adopts one-button operation, a measurement system automatically carries out measurement work, instrument parameters are automatically configured according to requirements, and tested signals are automatically switched. A plurality of metering items can be expanded in parallel, and the test is flexible. The key data is automatically stored, and unattended operation can be performed in the metering process. After metering is finished, metering software automatically reads a metering result, automatically provides a metering report and a certificate, and is connected with a printer to print the report and the certificate.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should 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 technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present application, and they should be construed as being included in the present application.
Claims (7)
1. A universal metering test device is characterized in that: including a plurality of rack case, every the rack incasement all is equipped with signal switching equipment and measurement appearance, signal switching equipment includes the bottom plate and pegs graft power strip, mainboard and a plurality of signal board that awaits measuring on the bottom plate, the integration has a plurality of relays in the bottom plate, every the signal board all is connected to the measurement appearance through a relay, the control signal input part of relay passes through the control signal output part of mainboard connection to the host computer.
2. The universal metering test device of claim 1 wherein: the relay is the binary channels relay, the measurement appearance is the binary channels measurement appearance, the first passageway of binary channels relay is connected to the first passageway of measurement appearance through first radio frequency connector, the second passageway of binary channels relay is connected to the second passageway of measurement appearance through the second radio frequency connector.
3. The universal metering test device of claim 1 wherein: the relay is a normally open relay.
4. The universal metering test apparatus of claim 1, wherein: and the signal switching equipment, the metering instrument and the upper computer are connected with the switch through network cables.
5. The universal metering test device of claim 4, wherein: the number of the rack boxes is three, one of the rack boxes is internally provided with a power supply, the power supply is an AC/DC power supply, and the power supply is connected to power panels of the three signal switching devices through a one-to-three power supply cable.
6. The universal metering test apparatus of claim 4, wherein: the upper computer and the switch are respectively arranged in different rack boxes.
7. The universal metering test device of claim 5, wherein: the rack box comprises a rack box I, a rack box II and a rack box III;
the signal switching equipment and the metering instrument in the rack box I are respectively crystal oscillator signal switching equipment and a frequency meter;
the signal switching equipment and the metering instrument in the rack box II are respectively constant current source signal switching equipment and an ammeter;
and the signal switching equipment and the metering instrument in the rack box III are respectively AD signal switching equipment and a voltage source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222035946.4U CN218122130U (en) | 2022-08-03 | 2022-08-03 | Universal metering and testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222035946.4U CN218122130U (en) | 2022-08-03 | 2022-08-03 | Universal metering and testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218122130U true CN218122130U (en) | 2022-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222035946.4U Active CN218122130U (en) | 2022-08-03 | 2022-08-03 | Universal metering and testing device |
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| Country | Link |
|---|---|
| CN (1) | CN218122130U (en) |
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- 2022-08-03 CN CN202222035946.4U patent/CN218122130U/en active Active
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