CN219122593U - Data acquisition device of measurement and control device - Google Patents
Data acquisition device of measurement and control device Download PDFInfo
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- CN219122593U CN219122593U CN202223438218.4U CN202223438218U CN219122593U CN 219122593 U CN219122593 U CN 219122593U CN 202223438218 U CN202223438218 U CN 202223438218U CN 219122593 U CN219122593 U CN 219122593U
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Abstract
The utility model provides a data acquisition device of a measurement and control device, which comprises: the voltage sampling circuit and the current sampling circuit are respectively and correspondingly connected with the voltage signal A/D converter and the current signal A/D converter; the voltage signal A/D converter and the current signal A/D converter process the sampling signals and input the processed sampling signals to the digital processing chip; the digital processing chip is used for collecting the connected synchronous signal tester, dynamic data tester and tele-channel data tester and forwarding the data of the measurement and control device collected by each tester. According to the embodiment, the acquired signals of the measurement and control device can be transmitted to the user through the DSP, so that the user can conveniently and synchronously acquire the test signals of the measurement and control device, and the test signals are used as the data basis for subsequent verification.
Description
Technical Field
The utility model relates to the technical field of data acquisition, in particular to a data acquisition device of a measurement and control device.
Background
The accuracy of the automatic measurement and control device in the power system is crucial to scheduling and monitoring, the accuracy of each function and performance of the automatic measurement and control device is crucial to safe and stable operation of a power grid, and the automatic measurement and control device needs to be checked and tested according to the period. The measuring and controlling device is of various kinds, such as a DFU410 measuring and controlling device which is permitted to be produced subsequently.
The test circuit adopted in the calibrator of the traditional measurement and control device has the following defects: 1. because the operation panel of the measurement and control device is arranged at the front end of the screen cabinet and the wiring terminal is arranged at the rear of the screen cabinet, the notebook computer needs to be operated in front of the screen cabinet during the verification operation, the calibrator needs to be arranged at the rear of the screen cabinet, and the operation is very inconvenient due to the involvement of the connecting wires; 2. the test data of the synchronous test cannot be collected, and the synchronism of the measurement and control device cannot be tested; 3. the dynamic performance of the measurement and control device cannot be tested; 4. the accuracy of the data of the telecontrol channel of the measurement and control device cannot be tested.
Currently, the most important solution is that synchronous test data cannot be collected.
Disclosure of Invention
The embodiment of the utility model provides a data acquisition device of a measurement and control device, which aims to solve the defect that test data cannot be acquired from the measurement and control device in the prior art.
The embodiment of the utility model provides a data acquisition device of a measurement and control device, which comprises:
the voltage sampling circuit and the current sampling circuit are respectively and correspondingly connected with the voltage signal A/D converter and the current signal A/D converter; the voltage signal A/D converter and the current signal A/D converter process the sampling signals and input the processed sampling signals to the digital processing chip; the digital processing chip is used for collecting the connected synchronous signal tester, dynamic data tester and tele-channel data tester and forwarding the data of the measurement and control device collected by each tester.
Preferably, the method further comprises: and the GPS signal receiver is connected with the digital processing chip and is used for outputting a synchronous signal for the digital processing chip.
Preferably, the method further comprises: and the wifi interface is used for connecting the digital processing chip and wirelessly forwarding the data of the measurement and control device collected by each tester.
Preferably, the model of the synchronous signal tester is ADS8568, the model of the dynamic data tester is SI8460, and the model of the telecontrol channel data tester is DP83848 VVBC.
Preferably, the digital processing chip is a DSP chip.
According to the embodiment, the acquired signals of the measurement and control device can be transmitted to the user through the DSP, so that the user can conveniently and synchronously acquire the test signals of the measurement and control device, and the test signals are used as the data basis for subsequent verification.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments of the present utility model will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a data acquisition device according to a preferred embodiment of the present utility model;
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, an embodiment provides a data acquisition device of a measurement and control device, including: referring to fig. 1, comprising:
the voltage sampling circuit and the current sampling circuit are respectively and correspondingly connected with the voltage signal A/D converter and the current signal A/D converter; namely "voltage sampling" and "current sampling" in the block diagram of fig. 1. The voltage signal A/D converter and the current signal A/D converter are respectively 'A/D-U' and 'A/D-I' in the way.
The voltage signal A/D converter and the current signal A/D converter process the sampling signals and input the processed sampling signals to the digital processing chip;
in an embodiment, the digital processing chip is implemented using a DSP chip.
The digital processing chip is used for collecting the connected synchronous signal tester, dynamic data tester and tele-channel data tester and forwarding the data of the measurement and control device collected by each tester.
According to the embodiment, the acquired signals of the measurement and control device can be transmitted to the user through the DSP, so that the user can conveniently and synchronously acquire the test signals of the measurement and control device, and the test signals are used as the data basis for subsequent verification.
Preferably, the method further comprises: and the GPS signal receiver is connected with the digital processing chip and is used for outputting a synchronous signal for the digital processing chip. In an embodiment, a synchronous control may be added to cause the DSP to forward these test signals in accordance with a predetermined frequency synchronicity.
Preferably, the method further comprises: and the wifi interface is used for connecting the digital processing chip and wirelessly forwarding the data of the measurement and control device collected by each tester.
Preferably, the method further comprises: the model of the synchronous signal tester is ADS8568, the model of the dynamic data tester is SI8460, and the model of the telecontrol channel data tester is DP83848 VVBC.
Preferably, the digital processing chip is a DSP chip.
The acquisition device in the embodiment respectively acquires voltage and current analog signals of the measurement and control device through the voltage/current sampling circuit, converts the voltage and current analog signals into digital signals through A/D, transmits the digital signals to the DSP, and transmits the digital signals to a notebook or a data center of a user through the DSP to finish the verification of the static precision index of the measurement and control device;
the synchronous signal tester collects synchronous signals of the measurement and control device, tests the synchronism of the measurement and control device according to the GPS-1PPS second pulse trigger, and transmits test data to the DSP; the dynamic data tester and the telemechanical channel data tester respectively collect dynamic data and telemechanical channel data of the measurement and control device, test of the dynamic data and the telemechanical channel data is completed, the test data is transmitted to the DSP, and after the test data are forwarded by the DSP, verification of the dynamic performance and telemechanical channel data correctness of the measurement and control device is realized.
The acquisition device is used for realizing the operations of starting, stopping and the like of acquisition through wifi wireless communication, outputting test signals to a notebook of a user, and forwarding control signals of starting, stopping. And completing wireless control of the whole verification process and transmission of the collected test signals.
The model numbers of the respective devices in the examples are as follows:
table 1, main device table of each functional module
In the above embodiment, the method and the device can be used for collecting test signals of various measurement and control devices in the prior art, transmitting a notebook of a user and completing later verification.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (5)
1. The utility model provides a measurement and control device's data acquisition device which characterized in that includes:
the voltage sampling circuit and the current sampling circuit are respectively and correspondingly connected with the voltage signal A/D converter and the current signal A/D converter;
the voltage signal A/D converter and the current signal A/D converter process the sampling signals and input the processed sampling signals to the digital processing chip;
the digital processing chip is used for collecting the connected synchronous signal tester, dynamic data tester and tele-channel data tester and forwarding the data of the measurement and control device collected by each tester.
2. The data acquisition device of claim 1, further comprising: and the GPS signal receiver is connected with the digital processing chip and is used for outputting a synchronous signal for the digital processing chip.
3. The data acquisition device of claim 1, further comprising: and the wifi interface is used for connecting the digital processing chip and wirelessly forwarding the data of the measurement and control device collected by each tester.
4. The data acquisition device of claim 1, wherein the synchronization signal tester is model ADS8568, the dynamic data tester is model SI8460, and the tele-channel data tester is model DP83848VVVBC.
5. The data acquisition device of claim 1, wherein the digital processing chip is a DSP chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223438218.4U CN219122593U (en) | 2022-12-21 | 2022-12-21 | Data acquisition device of measurement and control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223438218.4U CN219122593U (en) | 2022-12-21 | 2022-12-21 | Data acquisition device of measurement and control device |
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| Publication Number | Publication Date |
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| CN219122593U true CN219122593U (en) | 2023-06-02 |
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| CN202223438218.4U Active CN219122593U (en) | 2022-12-21 | 2022-12-21 | Data acquisition device of measurement and control device |
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| CN (1) | CN219122593U (en) |
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- 2022-12-21 CN CN202223438218.4U patent/CN219122593U/en active Active
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