A multi-channel data acquisition device
A data acquisition and multi-channel technology, applied in the field of measurement and testing, can solve the problems of unsuitable multi-channel data acquisition devices, high cost, inaccurate monitoring results, etc., to reduce the time for troubleshooting, save costs, and monitor results accurately Effect
Active Publication Date: 2017-10-24
RIGOL
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[0009] It can be seen that the above scheme is a simple control structure, which can only be monitored for one relay. If it is applied to a multi-channel data acquisition device with multiple relays or a relay matrix, it can only monitor each channel. A certain relay of the card is monitored, such monitoring results are very inaccurate and costly
[0010] Therefore, the existing technology is not suitable for multi-channel data acquisition devices, which have multiple relays or relay matrices
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[0033] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0034] In this example, refer to figure 1 , the multi-channel data acquisition device 100 of the present invention includes a main control module 101, a backplane module and a channel card 103, the backplane module is provided with a bus 102, and there are N channel cards 103, N≥1, and the number of channel cards 103 The number does not affect the present invention, and this embodiment takes the first channel card as an example for illustration.
[0035] In this embodiment, the master control module 101 includes a master control unit 1011, and the channel card 103 includes a slave control unit 1031, a slave storage unit 1033 and a plurality of relays 1032, and the master control unit 1011 can communicate with the slave through the...
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A multi-channel data acquisition device relates to the technical field of measurement and testing, comprising a master control module, a backplane module, and a channel card, wherein the master control module includes a master control unit; the channel card includes a slave control unit, a From the storage unit and a plurality of relays; the backplane module is provided with a bus, and the main control unit is connected to the slave control unit through the bus; the slave control unit controls the switching of the corresponding relays according to the control command of the main control unit, and sends a message to the slave Accumulate and record the switching times data of the corresponding relays in the storage unit, obtain the switching times data of each relay in the slave storage unit according to the query command of the master control unit, and send it to the master control unit. The multi-channel data acquisition device provided by the invention realizes the monitoring of the switching times of each relay, and the monitoring result is accurate, which reduces the time for troubleshooting and saves costs.
Description
technical field [0001] The invention relates to the technical field of measurement and testing, in particular to a multi-channel data acquisition device. Background technique [0002] The data acquisition device is a standardized modular instrument with a bus structure, including a main control module, a backplane module and a channel card. The backplane module is provided with a bus, the main control module is connected to the channel card through the bus, and the data acquisition device is The card is connected to the external measured signal, which can realize the automatic collection of various information such as current, voltage, frequency, period, temperature, etc. [0003] A multi-channel data acquisition device refers to a data acquisition device integrated with multiple measurement functions. It has multiple channels, and each channel can be connected to different external measured signals. refer to figure 1 , is a schematic structural diagram of a multi-channel ...
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IPC IPC(8): G01R31/327
Inventor 朱振悦王悦王铁军李维森
Owner RIGOL