A sensor signal acquisition system and acquisition device

Abstract

The utility model discloses a sensor signal acquisition system, including the all -in -one PC and CRIO system C of being connected, still include power supply circuit, power supply circuit is linked with all -in -one PC and CRIO system C respectively, CRIO system C includes CRIO unit, current signal module, voltage signal module and temperature signal module that are connected in proper order, CRIO unit includes the CPU module and communication module of being connected, through setting CRIO unit, current signal module, voltage signal module and temperature signal module, realized to voltage type pressure sensor, current type pressure sensor and the synchronous collection of temperature signal, based on CRIO system high -speed high -precision signal acquisition configuration, realizes 4 way temperature channel, 8 way current channel and 8 way voltage channel signal simultaneous acquisition, solved the technical problem that the signal test equipment of sensor in the prior art cannot satisfy the test test demand of multiple sensors simultaneously.

Description

Technical Field

[0001] This utility model belongs to the field of sensors and relates to signal acquisition devices, specifically a sensor signal acquisition system and acquisition device. Background Technology

[0002] In terms of data acquisition, although data acquisition equipment can also perform signal testing of sensors, sensor testing is generally time-consuming. In addition, data acquisition has many functions, is complex to configure and operate, requires professional personnel to operate, and is expensive.

[0003] Therefore, there is an urgent need for a dedicated, low-cost, portable, easy-to-operate, and highly versatile sensor testing system to facilitate rapid testing by personnel. This system can simultaneously acquire multiple sensor signals such as temperature, voltage, and current in real time, meeting the testing needs of various sensors and enabling efficient and rapid testing, thereby improving work efficiency. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a sensor signal acquisition system and acquisition device to solve the technical problem that the existing sensor signal testing equipment cannot simultaneously meet the testing needs of multiple sensors.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A sensor signal acquisition system includes an integrated PC and a CRIO system C connected together, and also includes a power supply circuit, which is connected to the integrated PC and the CRIO system C respectively;

[0007] The CRIO system C includes a CRIO unit, a current signal module, a voltage signal module, and a temperature signal module connected in sequence.

[0008] The CRIO unit includes a connected CPU module and a communication module.

[0009] This utility model includes the following technical features:

[0010] The communication modules of the all-in-one PC and the CRIO system C are connected via a network cable.

[0011] The power supply circuit includes circuit breakers F1, F2, and F3; push-button switches S1, S2, and S3; power modules DP1 and DP2; one end of circuit breaker F1 is connected to an external power source, and the other end of circuit breaker F1 is connected to one end of push-button switch S1; the other end of push-button switch S1 is connected to power modules DP1 and DP2, which are connected in parallel; power module DP1 is sequentially connected to circuit breaker F2 and push-button switch S2; push-button switch S2 is connected to the CPU module; power module DP2 is sequentially connected to circuit breaker F3 and push-button switch S3; push-button switch S3 is connected to the current signal module and the voltage signal module.

[0012] An X1 DC terminal block is provided between the push button switch S2 and the CPU module; an X2 DC terminal block is provided between the push button switch S3 and both the current signal module and the voltage signal module.

[0013] The CRIO unit, current signal module, voltage signal module, and temperature signal module are selected as NI9042, NI 9203, NI 9201, and NI 9219, respectively.

[0014] The CPU module, communication module, current signal module, voltage signal module, and temperature signal module are connected sequentially via parallel connectors.

[0015] A data acquisition device includes a control cabinet, in which the sensor signal acquisition system is installed, and the outer wall of the control cabinet has multiple external ports pre-fabricated for connection to the sensor signal acquisition system.

[0016] Compared with the prior art, the beneficial technical effects of this utility model are:

[0017] This invention achieves synchronous acquisition of voltage-type pressure sensors, current-type pressure sensors, and temperature signals by setting up a CRIO unit, a current signal module, a voltage signal module, and a temperature signal module. Based on the high-speed and high-precision signal acquisition configuration of the CRIO system, it realizes the simultaneous acquisition of 4 temperature channels, 8 current channels, and 8 voltage channels, solving the technical problem that the existing sensor signal testing equipment cannot simultaneously meet the testing needs of multiple sensors. Attached Figure Description

[0018] Figure 1 This is a system topology diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the power supply circuit in this utility model;

[0020] Figure 3This is a schematic diagram of the CRIO unit in this utility model;

[0021] Figure 4 This is the wiring diagram of the temperature signal module in this utility model;

[0022] Figure 5 This is the wiring diagram of the voltage signal module in this utility model;

[0023] Figure 6 This is the wiring diagram for the current signal module in this utility model.

[0024] The specific content of this utility model will be further explained in detail below with reference to the embodiments. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, all components in this utility model are components known in the art.

[0026] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments. All equivalent modifications made based on the technical solutions of this application fall within the protection scope of the present invention.

[0027] This utility model provides a sensor signal acquisition system, including an integrated PC and a CRIO system C connected together, and a power supply circuit, which is connected to the integrated PC and the CRIO system C respectively.

[0028] The CRIO system C includes a CRIO unit, a current signal module, a voltage signal module, and a temperature signal module connected in sequence.

[0029] The CRIO unit includes a connected CPU module and a communication module.

[0030] In the above technical solution, by setting up a CRIO unit, a current signal module, a voltage signal module, and a temperature signal module, the synchronous acquisition of voltage-type pressure sensor, current-type pressure sensor, and temperature signals is realized. Based on the high-speed and high-precision signal acquisition configuration of the CRIO system, the simultaneous acquisition of 4 temperature channels, 8 current channels, and 8 voltage channels is achieved, which solves the technical problem that the existing sensor signal testing equipment cannot simultaneously meet the testing needs of multiple sensors.

[0031] In actual data collection, such as Figure 4 As shown, temperature sensor plugs X1 to X4 correspond to channels 1 to 4 of the temperature signal module, enabling the acquisition of temperature signals from different types of resistance temperature detectors (RTDs) and thermocouples; for example... Figure 5 As shown, voltage sensor plugs X1 to X8 correspond to channels 1 to 8 of the voltage signal module; as Figure 6As shown, the current-type sensor plugs X1 to X8 correspond to channels 1 to 8 of the current signal module;

[0032] The communication module of the all-in-one PC and the CRIO system C is connected via a network cable.

[0033] The power supply circuit includes circuit breakers F1, F2, and F3; push-button switches S1, S2, and S3; power modules DP1 and DP2; one end of circuit breaker F1 is connected to an external power source, and the other end of circuit breaker F1 is connected to one end of push-button switch S1; the other end of push-button switch S1 is connected to power modules DP1 and DP2, which are connected in parallel; power module DP1 is connected to circuit breaker F2 and push-button switch S2 in sequence, and push-button switch S2 is connected to the CPU module; power module DP2 is connected to circuit breaker F3 and push-button switch S3 in sequence, and push-button switch S3 is connected to the current signal module and the voltage signal module.

[0034] In the above technical solution, circuit breaker F1 is used to protect the control system and prevent damage to components caused by short circuits or overloads; after button switch S1 is pressed, power modules DP1 and DP2 are powered on; power module DP1 is an AC220V to DC24V power module that powers the CPU module of the CRIO unit, and power module DP2 powers the sensor excitation; after button switch S2 is pressed, the CPU module of the CRIO unit is powered on, and after button switch S3 is pressed, the current signal module and voltage signal module of the CRIO system C are powered on, and then the all-in-one PC is powered on.

[0035] An X1 DC terminal block is provided between the push button switch S2 and the CPU module; an X2 DC terminal block is provided between the push button switch S3 and both the current signal module and the voltage signal module.

[0036] In the above technical solution, DC24V+ sensor excitation power is provided to voltage sensor plugs X1 to X8 through terminals 1 to 8# of the X2 DC terminal block 1, DC24V- sensor excitation power is provided to voltage sensor plugs X1 to X8 through terminals 11 to 18# of the X2 DC terminal block, and signal negative is provided to channels 1 to 8 of the voltage signal module through terminal 19# of the X2 DC terminal block.

[0037] DC24V+ sensor excitation power is provided to current-type sensor plugs X1-X8 through terminals 1-8 of the X2 DC terminal block. DC24V- sensor excitation power is provided to current-type sensor plugs X1-X8 through terminals 11-18 of the X2 DC terminal block. Signal negative is provided to channels 1-8 of the current signal module through terminal 19 of the X2 DC terminal block.

[0038] The CRIO unit, current signal module, voltage signal module, and temperature signal module are selected as NI9042, NI 9203, NI 9201, and NI 9219, respectively.

[0039] In the above technical solution, actual tests have verified that the acquisition efficiency and accuracy of the CRIO unit, current signal module, voltage signal module and temperature signal module in this series are all excellent.

[0040] The CPU module, communication module, current signal module, voltage signal module, and temperature signal module are connected sequentially via parallel connectors.

[0041] A data acquisition device includes a control cabinet, in which a sensor signal acquisition system is installed, and multiple external ports for connecting to the sensor signal acquisition system are pre-fabricated on the outer wall of the control cabinet.

Claims

1. A sensor signal acquisition system, characterized in that, It includes an all-in-one PC and a CRIO system C connected together, and also includes a power supply circuit, which is connected to the all-in-one PC and the CRIO system C respectively; The CRIO system C includes a CRIO unit, a current signal module, a voltage signal module, and a temperature signal module connected in sequence. The CRIO unit includes a connected CPU module and a communication module.

2. The sensor signal acquisition system as described in claim 1, characterized in that, The communication modules of the all-in-one PC and the CRIO system C are connected via a network cable.

3. The sensor signal acquisition system as described in claim 1, characterized in that, The power supply circuit includes circuit breakers F1, F2, and F3; push-button switches S1, S2, and S3; power modules DP1 and DP2; one end of circuit breaker F1 is connected to an external power source, and the other end of circuit breaker F1 is connected to one end of push-button switch S1; the other end of push-button switch S1 is connected to power modules DP1 and DP2, which are connected in parallel; power module DP1 is sequentially connected to circuit breaker F2 and push-button switch S2; push-button switch S2 is connected to the CPU module; power module DP2 is sequentially connected to circuit breaker F3 and push-button switch S3; push-button switch S3 is connected to the current signal module and the voltage signal module.

4. The sensor signal acquisition system as described in claim 3, characterized in that, An X1 DC terminal block is provided between the push button switch S2 and the CPU module; an X2 DC terminal block is provided between the push button switch S3 and both the current signal module and the voltage signal module.

5. The sensor signal acquisition system as described in claim 1, characterized in that, The CRIO unit, current signal module, voltage signal module, and temperature signal module are selected as NI9042, NI 9203, NI 9201, and NI 9219, respectively.

6. The sensor signal acquisition system as described in claim 1, characterized in that, The CPU module, communication module, current signal module, voltage signal module, and temperature signal module are connected sequentially via parallel connectors.

7. A data acquisition device, characterized in that, The system includes a control cabinet, which is equipped with the sensor signal acquisition system according to any one of claims 1 to 6, and the outer wall of the control cabinet has a plurality of external ports prefabricated for connection with the sensor signal acquisition system.

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