A multi-channel on / off, off / on target conditioner device

Abstract

The utility model provides a kind of multi-channel off / on, on / off target conditioner device, comprising: signal conditioning unit, the number of signal conditioning unit is greater than or equal to the output channel number of multi-channel off / on, on / off target, signal conditioning unit includes signal isolation input module, on-off target selection module, signal conditioning module and signal output module, wherein, the output channel of multi-channel off / on, on / off target is connected signal isolation input module, signal isolation input module, signal conditioning module, signal output module are sequentially connected, and on-off target selection module is connected on signal conditioning module, and the output interface of signal output module is connected with data acquisition equipment. The present application is to the output signal of off / on, on / off target and is output a pulse signal to be conditioned, so that the output signal of off / on, on / off target can be accurately, reliably collected by data acquisition equipment.

Description

Technical Field

[0001] This utility model relates to the field of equipment for testing fragments in an explosion field using a target with open / closed or closed / open targets, and specifically to a multi-channel target conditioner device with open / closed or closed / open targets. Background Technology

[0002] In explosion fields, open / closed targets and closed / open targets are commonly used to test parameters such as the velocity distribution characteristics of fragments. Before a fragment penetrates the target, the circuit is open; when the fragment contacts the target, the circuit closes and generates a signal. Conversely, before the fragment passes through the target, the circuit is closed; when the fragment contacts the target, the circuit opens and generates a signal. Both signals are used by data acquisition equipment. This equipment collects these signals to statistically analyze the fragment distribution characteristics. However, during testing, because the signal is not a complete pulse, it is difficult to read accurate and valid data. Existing open / closed targets and closed / open targets are susceptible to interference between their channels, resulting in inaccurate test signals. Furthermore, the setup process at the experimental site is cumbersome. Therefore, existing open / closed and closed / open target testing devices cannot meet the testing requirements and cannot provide an accurate and reliable test signal. Utility Model Content

[0003] To address the aforementioned technical problems, this invention proposes a multi-channel on / off and on / off target conditioner device, which can be quickly deployed at the test site. The output signal of the conditioner on / off and on / off targets is a pulse signal with adjustable pulse width, facilitating use by data acquisition equipment.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A multi-channel on / off and on / off target conditioner device, characterized in that it includes a signal conditioning unit, the number of which is greater than or equal to the number of output channels of the multi-channel on / off and on / off targets. Each signal conditioning unit includes a signal isolation input module, a signal conditioning module, an on / off target selection module, and a signal output module. The output channels of the multi-channel on / off and on / off targets are connected to the signal isolation input module, which is connected to the signal conditioning module. The signal conditioning module is connected to the signal output module, and the output terminal of the signal output module is connected to a data acquisition device. The on / off target selection module is connected to the signal conditioning module for selecting either an on / off target or an on / off target as the output signal.

[0005] Furthermore, at least three signal conditioning units are provided.

[0006] Furthermore: the signal isolation input module includes an optocoupler isolation chip U1, a power supply VCC, a first resistor R1, a second resistor R2, a first capacitor C1, and a first BNC input interface. The VCC pin of the optocoupler isolation chip U1, one end of the first resistor R1 and the second resistor R2 are connected to the power supply VCC, the other end of the first resistor R1 is connected to the Anode pin of the optocoupler isolation chip U1, one end of the first BNC is connected to the Cathode pin of the optocoupler isolation chip U1, and the other end of the first BNC is connected to the power supply GND. One end of the first capacitor C1 is connected to the power supply VCC, and the other end of the first capacitor C1 is connected to the power supply GND. The other end of the second resistor R2 is connected to the Vo pin of the optocoupler isolation chip U1, and the GND pin of the optocoupler isolation chip U1 is connected to the power supply GND.

[0007] Furthermore, the signal conditioning module includes an FPGA chip.

[0008] Furthermore: The on / off target selection module includes an NPN transistor Q1, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first DIP switch SW1, and a first LED. One end of the third resistor R3 is connected to the Vo pin of the optocoupler isolation chip U1, and the other end of the third resistor R3 is connected to the base of the NPN transistor Q1. One end of the fourth resistor R4 is connected to the power supply VCC, and the other end of the fourth resistor R4 is connected to the collector of the NPN transistor Q1. The emitter of the NPN transistor Q1 is connected to the power supply GND. One end of the fifth resistor R5 is connected to the collector of the NPN transistor Q1, and the other end of the fifth resistor R5 is connected to the positive terminal of the first LED. The negative terminal of the LED is connected to the power supply GND. One end of the sixth resistor R6 is connected to the power supply VCC, and the other end of the sixth resistor R6 is connected to one end of the first DIP switch. The other end of the first DIP switch is connected to the positive terminal of the LED.

[0009] Furthermore: the signal output module includes a level shifter.

[0010] This application provides a multi-channel off / on, on / off target conditioner device, including a signal conditioning unit, wherein there are n (n≥3) signal conditioning units, wherein the number of signal conditioning units is greater than or equal to the number of output channels of the multi-channel off / on, on / off target.

[0011] The signal conditioning unit includes a signal isolation input module, a signal conditioning module, an on / off target selection module, and a signal output module, wherein: The signal isolation input module is mainly used to isolate the output signals of the off / on and on / off targets. It uses high-speed optocouplers to isolate the input signals and prevent signal interference between input channels. The on / off target selection module is mainly used to select the on / off target or the on / off target as the output signal; The signal conditioning module mainly conditions the input signal and outputs a pulse signal with a specified pulse width. The signal output module mainly conditions the output pulse signal so that it can be transmitted over long distances.

[0012] Specifically: The signal conditioning module mainly uses FPGA to modulate the pulse width, mainly conditioning the output signals of the isolated multi-channel off / on and on / off targets to output a pulse signal. The signal output module mainly uses a level shifter to increase the drive current and drive voltage of the output signal, so that the output signal can be transmitted over long distances.

[0013] The signal isolation input module includes an optocoupler isolation chip U1 (product model TLP2362), a power supply VCC, a first resistor R1, a second resistor R2, a first capacitor C1, and a first BNC input interface. The VCC pin of the optocoupler isolation chip U1, one end of the first resistor R1 and the second resistor R2 are connected to the power supply VCC, the other end of the first resistor R1 is connected to the Anode pin of the optocoupler isolation chip U1, one end of the first BNC is connected to the Cathode pin of the optocoupler isolation chip U1, and the other end of the first BNC is connected to the power supply GND. One end of the first capacitor C1 is connected to the power supply VCC, and the other end of the first capacitor C1 is connected to the power supply GND. The other end of the second resistor R2 is connected to the Vo pin of the optocoupler isolation chip U1, and the GND pin of the optocoupler isolation chip U1 is connected to the power supply GND.

[0014] The on / off target selection module includes a transistor Q1 (product model S8050NPN), a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first DIP switch SW1, and a first LED. One end of the third resistor R3 is connected to the Vo pin of the optocoupler isolation chip U1, and the other end of the third resistor R3 is connected to the base of the NPN transistor Q1. One end of the fourth resistor R4 is connected to the power supply VCC, and the other end of the fourth resistor R4 is connected to the collector of the NPN transistor Q1. The emitter of the NPN transistor Q1 is connected to the power supply GND. One end of the fifth resistor R5 is connected to the collector of the NPN transistor Q1, and the other end of the fifth resistor R5 is connected to the positive terminal of the first LED. The negative terminal of the LED is connected to the power supply GND. One end of the sixth resistor R6 is connected to the power supply VCC, and the other end of the sixth resistor R6 is connected to one end of the first DIP switch. The other end of the first DIP switch is connected to the positive terminal of the LED.

[0015] This invention conditions the output signal of an on / off target and an on / off target to output a pulse signal, enabling the output signal of the on / off target to be accurately and reliably acquired by a data acquisition device. Therefore, this device provides a safe and reliable testing equipment capable of accurately testing the signals of the on / off target and the on / off target.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a multi-channel on / off and on / off target conditioner device. The device uses a signal isolation module to isolate the output signals of the on / off and on / off targets to prevent signal interference between channels. The signal conditioning module and the output module condition and output a stable and reliable pulse signal, so that the output signals of the on / off and on / off targets can be accurately and reliably acquired by the data acquisition equipment. Attached Figure Description

[0017] Figure 1 A structural block diagram of the multi-channel on / off and on / off target conditioner device provided in this embodiment of the utility model; Figure 2 The circuit diagram of the multi-channel on / off and on / off target conditioner device provided in the embodiments of this utility model. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments: This utility model provides a multi-channel on / off and on / off target conditioner device, which aims to solve problems such as signal interference, unstable testing, and inconvenient setup during on / off and on / off target testing. The specific technical solution is as follows: like Figure 1As shown, this application proposes a multi-channel on / off target conditioner device, comprising a signal conditioning unit. The number of signal conditioning units is greater than or equal to the number of output channels of the multi-channel on / off target. Each signal conditioning unit includes a signal isolation input module, a signal conditioning module, an on / off target selection module, and a signal output module. The output channels of the multi-channel on / off target are connected to the signal isolation input module, which is connected to the signal conditioning module. The signal conditioning module is connected to the signal output module, and its output terminal is connected to a data acquisition device. The on / off target selection module is connected to the signal conditioning module for selecting either an on / off target or an on / off target as the output signal. At least three signal conditioning units are provided. The signal isolation input module includes an optocoupler isolation chip U1, a power supply VCC, a first resistor R1, a second resistor R2, a first capacitor C1, and a first BNC input interface. The VCC pin of the optocoupler isolation chip U1, one end of the first resistor R1 and the second resistor R2 are connected to the power supply VCC. The other end of the first resistor R1 is connected to the Anode pin of the optocoupler isolation chip U1. One end of the first BNC is connected to the Cathode pin of the optocoupler isolation chip U1, and the other end of the first BNC is connected to the power supply GND. One end of the first capacitor C1 is connected to the power supply VCC, and the other end of the first capacitor C1 is connected to the power supply GND. The other end of the second resistor R2 is connected to the Vo pin of the optocoupler isolation chip U1, and the GND pin of the optocoupler isolation chip U1 is connected to the power supply GND. The optocoupler isolation chip U1 is a TLP2362. The signal conditioning module includes an FPGA chip, specifically an EP4CE10F17C8. The on / off target selection module includes an NPN transistor Q1, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first DIP switch SW1, and a first LED. One end of the third resistor R3 is connected to the Vo pin of the optocoupler isolation chip U1, and the other end of the third resistor R3 is connected to the base of the NPN transistor Q1. One end of the fourth resistor R4 is connected to the power supply VCC, and the other end of the fourth resistor R4 is connected to the collector of the NPN transistor Q1. The emitter of the NPN transistor Q1 is connected to the power supply GND. One end of the fifth resistor R5 is connected to the collector of the NPN transistor Q1, and the other end of the fifth resistor R5 is connected to the positive terminal of the first LED. The negative terminal of the LED is connected to the power supply GND. One end of the sixth resistor R6 is connected to the power supply VCC, and the other end of the sixth resistor R6 is connected to one end of the first DIP switch. The other end of the first DIP switch is connected to the positive terminal of the LED. The NPN transistor Q1 is an S8050. The signal output module includes a level shifter, the model number of which is SN74LVC4245ADWR.

[0019] like Figure 1As shown, this application provides a multi-channel off / on, on / off target conditioner device, which includes a signal conditioning unit. The signal conditioning unit is provided with n (n≥3) units, wherein the number of signal conditioning units is greater than or equal to the number of output channels of the multi-channel off / on, on / off target.

[0020] The signal conditioning unit includes a signal isolation input module, a signal conditioning module, an on / off target selection module, and a signal output module, wherein: The signal isolation input module is mainly used to isolate the output signals of the off / on and on / off targets. It uses high-speed optocouplers for isolation input to prevent signal interference between input channels. The on / off target selection module is mainly used to select the on / off target or the on / off target as the output signal; The signal conditioning module mainly conditions the input signal and outputs a pulse signal with a specified pulse width. The signal output module mainly conditions the output pulse signal so that it can be transmitted over long distances.

[0021] Specifically: The signal conditioning module mainly uses FPGA to modulate the pulse width. It mainly conditions the output signals of the isolated multi-channel off / on and on / off targets to output a pulse signal. The signal output module mainly uses level shifters to increase the drive current and drive voltage of the output signal so that the output signal can be transmitted over long distances.

[0022] like Figure 2 As shown, the signal isolation input module includes an optocoupler isolation chip U1 (product model TLP2362), a power supply VCC, a first resistor R1, a second resistor R2, a first capacitor C1, and a first BNC input interface. The VCC pin of the optocoupler isolation chip U1, one end of the first resistor R1 and the second resistor R2 are connected to the power supply VCC, the other end of the first resistor R1 is connected to the Anode pin of the optocoupler isolation chip U1, one end of the first BNC is connected to the Cathode pin of the optocoupler isolation chip U1, and the other end of the first BNC is connected to the power supply GND. One end of the first capacitor C1 is connected to the power supply VCC, and the other end of the first capacitor C1 is connected to the power supply GND. The other end of the second resistor R2 is connected to the Vo pin of the optocoupler isolation chip U1, and the GND pin of the optocoupler isolation chip U1 is connected to the power supply GND.

[0023] like Figure 2As shown, the on / off target selection module includes a transistor Q1 (product model S8050NPN), a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first DIP switch SW1, and a first LED. One end of the third resistor R3 is connected to the Vo pin of the optocoupler isolation chip U1, and the other end of the third resistor R3 is connected to the base of the NPN transistor Q1. One end of the fourth resistor R4 is connected to the power supply VCC, and the other end of the fourth resistor R4 is connected to the collector of the NPN transistor Q1. The emitter of the NPN transistor Q1 is connected to the power supply GND. One end of the fifth resistor R5 is connected to the collector of the NPN transistor Q1, and the other end of the fifth resistor R5 is connected to the positive terminal of the first LED. The negative terminal of the LED is connected to the power supply GND. One end of the sixth resistor R6 is connected to the power supply VCC, and the other end of the sixth resistor R6 is connected to one end of the first DIP switch. The other end of the first DIP switch is connected to the positive terminal of the LED.

[0024] This invention conditions the output signal of an on / off target and an on / off target to output a pulse signal, enabling the output signal of the on / off target to be accurately and reliably acquired by a data acquisition device. Therefore, this device provides a safe and reliable testing equipment capable of accurately testing the signals of the on / off target and the on / off target.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any modifications or equivalent changes made based on the technical essence of the present utility model shall still fall within the scope of protection claimed by the present utility model.

Claims

1. A multi-channel on / off and on / off target conditioner device, characterized in that, The system includes a signal conditioning unit, the number of which is greater than or equal to the number of output channels of the multi-channel off / on and on / off targets. Each signal conditioning unit includes a signal isolation input module, a signal conditioning module, an on / off target selection module, and a signal output module. The output channels of the multi-channel off / on and on / off targets are connected to the signal isolation input module, which is connected to the signal conditioning module. The signal conditioning module is connected to the signal output module, and the output terminal of the signal output module is connected to a data acquisition device. The on / off target selection module is connected to the signal conditioning module and is used to select an off / on target or an on / off target as the output signal.

2. The multi-channel on / off and on / off target conditioner device according to claim 1, characterized in that, At least three signal conditioning units are provided.

3. The multi-channel on / off and on / off target conditioner device according to claim 1, characterized in that, The signal isolation input module includes an optocoupler isolation chip U1, a power supply VCC, a first resistor R1, a second resistor R2, a first capacitor C1, and a first BNC input interface. The VCC pin of the optocoupler isolation chip U1, one end of the first resistor R1 and the second resistor R2 are connected to the power supply VCC, the other end of the first resistor R1 is connected to the Anode pin of the optocoupler isolation chip U1, one end of the first BNC is connected to the Cathode pin of the optocoupler isolation chip U1, and the other end of the first BNC is connected to the power supply GND. One end of the first capacitor C1 is connected to the power supply VCC, and the other end of the first capacitor C1 is connected to the power supply GND. The other end of the second resistor R2 is connected to the Vo pin of the optocoupler isolation chip U1, and the GND pin of the optocoupler isolation chip U1 is connected to the power supply GND.

4. The multi-channel on / off and on / off target conditioner device according to claim 1, characterized in that, The signal conditioning module includes an FPGA chip.

5. A multi-channel on / off, on / off target conditioner device according to claim 1 or 3, characterized in that, The on / off target selection module includes an NPN transistor Q1, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first DIP switch SW1, and a first LED. One end of the third resistor R3 is connected to the Vo pin of the optocoupler isolation chip U1, and the other end of the third resistor R3 is connected to the base of the NPN transistor Q1. One end of the fourth resistor R4 is connected to the power supply VCC, and the other end of the fourth resistor R4 is connected to the collector of the NPN transistor Q1. The emitter of the NPN transistor Q1 is connected to the power supply GND. One end of the fifth resistor R5 is connected to the collector of the NPN transistor Q1, and the other end of the fifth resistor R5 is connected to the positive terminal of the first LED. The negative terminal of the LED is connected to the power supply GND. One end of the sixth resistor R6 is connected to the power supply VCC, and the other end of the sixth resistor R6 is connected to one end of the first DIP switch. The other end of the first DIP switch is connected to the positive terminal of the LED.

6. The multi-channel on / off and on / off target conditioner device according to claim 1, characterized in that, The signal output module includes a level shifter.

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