High-precision signal distributor of gate opening instrument

Abstract

The high-precision signal distributor of the gate opening instrument comprises an input signal acquisition end, a signal amplifier and an isolation deconcentrator which are arranged in a matched manner, the input signal acquisition end is used for acquiring an input signal of the encoder, the encoder is directly connected with the flashboard, and the flashboard acts to drive the encoder to generate data change; the signal amplifier is used for amplifying an input signal so as to enhance the strength and the stability of the input signal and reduce the loss in signal transmission; and the isolation deconcentrator is used for accessing input signals and distributing the input signals to the used port devices so as to ensure that display data of all the port devices are consistent and improve signal quality and accuracy.

Description

Technical field:

[0001] The utility model relates to a high-precision signal distributor for a gate opening instrument. Background technology:

[0002] The gate opening meter, also known as the stroke detection device, is a hydraulic metal structure equipment widely used in water conservancy hubs. It is a very important key detection device on the gate hoist. Its measurement accuracy, working stability and reliability, and anti-interference ability are directly related to the operating safety and performance status of the gate and the gate hoist.

[0003] Normally, the gate opening meter usually uses a gate opening sensor or a displacement sensor for measurement. The encoder value is collected through a special measurement and control instrument to accurately measure the displacement, so as to achieve the purpose of real-time measurement and control of the displacement of the measured object. It can measure the opening of gates of various winches and screw hoists, including vertical doors, flat doors, curved doors, miter doors, door cranes, bridge cranes, etc.

[0004] Since the installation time of the on-site opening instruments was the main construction period, some opening instruments have a long working service life. Due to the aging of the instruments and equipment damage, errors will occur in the data collection of the opening instruments. After replacing equipment of different brands in the later period, due to different measurement accuracy and measurement principles, there are also errors between the displayed data, output data and actual data. At the same time, after PLC optimization, the data source collected by the on-site opening instrument and the PLC automation control system is not synchronized, resulting in inconsistent displayed data, and the signal quality and accuracy cannot meet the usage requirements of actual application scenarios. Utility model content:

[0005] The embodiment of the utility model provides a high-precision signal distributor for a gate opening instrument. The structure is reasonably designed and based on the mutual cooperation of multiple functional components, the data source collected by the opening instrument can be unified with the data source collected by the PLC control system, that is, the encoder data of the PLC control system is divided into two via the signal distributor, one way is connected to the opening instrument, and the other way is connected to the PLC control system, so as to avoid large errors in the data collected by the opening instrument and achieve consistency between the local opening data and the remote opening data. The utility model can cooperate with various industrial sensors to extract parameter signals and perform isolation and transmission, so as to meet the needs of users for local monitoring and remote data collection, ensure the smooth development of water diversion operation, and solve the problems existing in the prior art.

[0006] The technical solution adopted by the utility model to solve the above technical problems is:

[0007] The gate opening meter high-precision signal distributor includes an input signal acquisition terminal, a signal amplifier and an isolation splitter that are arranged in coordination; the input signal acquisition terminal is used to collect encoder input signals, the encoder is directly connected to the gate plate, and the movement of the gate plate drives the encoder to change data;

[0008] The signal amplifier is used to amplify the input signal to enhance the strength and stability of the input signal and reduce the loss in signal transmission;

[0009] The isolation splitter is used to access and distribute the input signal to the port devices used to ensure that all port devices display consistent data and improve signal quality and accuracy.

[0010] The port equipment includes a PLC and an opening meter.

[0011] The input signal acquisition end includes an AD converter and a rope collection encoder that are electrically connected to each other to convert the input signal of the encoder into an analog signal or a digital signal; the model of the AD converter is AD8551, and 8 pins are provided on the AD converter, pin No. 3 of the AD converter is an input pin, and pin No. 5 of the AD converter is an output pin.

[0012] The model of the signal amplifier is I CL7650, and 5 pins are provided on the signal amplifier. The signal amplifier is connected to the isolation splitter through pin No. 5, and pin No. 2 of the signal amplifier is connected to the input signal collection end through the twelfth resistor, the thirteenth resistor, the eighth capacitor and the ninth capacitor connected in parallel; the signal amplifier is connected to the input signal collection end through the tenth resistor, and the eleventh resistor is connected between pin No. 1 and pin No. 5 of the signal amplifier.

[0013] A timer can also be set in the input signal acquisition end, and the timer is used to record the corresponding time node of data acquisition; the model of the timer is DS1302, and 8 pins are provided on the timer. A fourth capacitor and a fourth resistor are provided between pin 6 and pin 7 of the timer.

[0014] The utility model adopts the above structure, collects the encoder input signal through the input signal collection end, the encoder is directly connected to the gate, and the movement of the gate drives the encoder to change the data; the input signal is amplified by the signal amplifier to enhance the strength and stability of the input signal and reduce the loss in signal transmission; the input signal is connected and distributed to the port equipment used through the isolation splitter to ensure that all port equipment display data consistent, improve signal quality and accuracy, and has the advantages of accuracy, practicality, safety and reliability. Description of the drawings:

[0015] Figure 1It is a structural schematic diagram of the utility model.

[0016] Figure 2 This is an electrical schematic diagram of the AD converter of the present utility model.

[0017] Figure 3 The figure is an electrical schematic diagram of the signal amplifier of the utility model.

[0018] Figure 4 This is the electrical schematic diagram of the timer of the utility model. Specific implementation method:

[0019] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0020] like Figure 1-4 As shown in the figure, the gate opening meter high-precision signal distributor includes an input signal acquisition terminal, a signal amplifier and an isolation splitter that are arranged in coordination; the input signal acquisition terminal is used to collect encoder input signals, the encoder is directly connected to the gate plate, and the movement of the gate plate drives the encoder to change data;

[0021] The signal amplifier is used to amplify the input signal to enhance the strength and stability of the input signal and reduce the loss in signal transmission;

[0022] The isolation splitter is used to access and distribute the input signal to the port devices used to ensure that all port devices display consistent data and improve signal quality and accuracy.

[0023] The port equipment includes a PLC and an opening meter.

[0024] The input signal acquisition end includes an AD converter and a rope collection encoder that are electrically connected to each other to convert the input signal of the encoder into an analog signal or a digital signal; the model of the AD converter is AD8551, and 8 pins are provided on the AD converter, pin No. 3 of the AD converter is an input pin, and pin No. 5 of the AD converter is an output pin.

[0025] The model of the signal amplifier is I CL7650, and 5 pins are provided on the signal amplifier. The signal amplifier is connected to the isolation splitter through pin No. 5, and pin No. 2 of the signal amplifier is connected to the input signal collection end through the twelfth resistor, the thirteenth resistor, the eighth capacitor and the ninth capacitor connected in parallel; the signal amplifier is connected to the input signal collection end through the tenth resistor, and the eleventh resistor is connected between pin No. 1 and pin No. 5 of the signal amplifier.

[0026] A timer can also be set in the input signal acquisition end, and the timer is used to record the corresponding time node of data acquisition; the model of the timer is DS1302, and 8 pins are provided on the timer. A fourth capacitor and a fourth resistor are provided between pin 6 and pin 7 of the timer.

[0027] The working principle of the high-precision signal distributor of the gate opening instrument in the embodiment of the utility model is as follows: based on the mutual cooperation of multiple functional components, the data source collected by the opening instrument can be unified with the data source collected by the PLC control system, that is, the encoder data of the PLC control system is divided into two via the signal distributor, one way is connected to the opening instrument, and the other way is connected to the PLC control system, so as to avoid large errors in the data collected by the opening instrument, and achieve consistency between the local opening data and the remote opening data. It can cooperate with various industrial sensors to extract parameter signals and perform isolation and transmission, so as to meet the needs of users for local monitoring and remote data collection, ensure the smooth development of water diversion operation, and facilitate promotion and popularization.

[0028] In the overall scheme, it mainly includes an input signal acquisition terminal, a signal amplifier and an isolation splitter that are arranged in coordination; the input signal acquisition terminal is used to collect the encoder input signal, the encoder is directly connected to the gate, and the movement of the gate drives the encoder to change the data;

[0029] The signal amplifier is used to amplify the input signal to enhance the strength and stability of the input signal and reduce the loss in signal transmission;

[0030] The isolation splitter is used to access and distribute the input signal to the port devices used to ensure that all port devices display consistent data and improve signal quality and accuracy.

[0031] Generally, port devices include PLC and opening meters, and different types of functional devices can also be added according to actual application requirements.

[0032] For the input signal acquisition end, it includes an AD converter and a rope collection encoder that are electrically connected to each other to convert the input signal of the encoder into an analog signal or a digital signal; the model of the AD converter is AD8551, and 8 pins are provided on the AD converter, pin No. 3 of the AD converter is an input pin, and pin No. 5 of the AD converter is an output pin.

[0033] The type of encoder can also be freely selected and set according to the actual application scenario, which is flexible and practical, and convenient for staff to adjust.

[0034] Preferably, the model of the signal amplifier is I CL7650, and 5 pins are provided on the signal amplifier. The signal amplifier is connected to the isolation splitter through pin No. 5, and pin No. 2 of the signal amplifier is connected to the input signal acquisition end through a twelfth resistor, a thirteenth resistor, an eighth capacitor and a ninth capacitor connected in parallel; the signal amplifier is connected to the input signal acquisition end through a tenth resistor, and an eleventh resistor is connected between pin No. 1 and pin No. 5 of the signal amplifier to accurately amplify the input signal to ensure the strength and accuracy of the input signal.

[0035] Preferably, a timer can also be set in the input signal acquisition end, and the timer is used to record the corresponding time node of data acquisition; the model of the timer is DS1302, and 8 pins are provided on the timer, and a fourth capacitor and a fourth resistor are provided between pin No. 6 and pin No. 7 of the timer; the input signal and the time node can be combined to facilitate the query of historical data.

[0036] The high-precision signal distributor of the gate opening meter in the present application is an instrument for transmitting, converting, isolating, transmitting and calculating various industrial signals in the automation control system. It can cooperate with various industrial sensors to extract parameter signals, isolate and transmit them, and meet the user's needs for local monitoring and remote data collection. Through innovative transformation, the main and standby dual signal source functions of the on-site opening meter opening display are realized, and the local and remote opening data are consistent, ensuring the smooth development of water diversion operations.

[0037] To sum up, the high-precision signal distributor of the gate opening instrument in the embodiment of the utility model is based on the mutual cooperation of multiple functional components, and can unify the data source collected by the opening instrument and the data source collected by the PLC control system, that is, the encoder data of the PLC control system is divided into two through the signal distributor, one way is connected to the opening instrument, and the other way is connected to the PLC control system, so as to avoid large errors in the data collected by the opening instrument, and achieve consistency between the local opening data and the remote opening data. It can cooperate with various industrial sensors to extract parameter signals and perform isolation and transmission, so as to meet the user's needs for local monitoring and remote data collection, ensure the smooth development of water diversion operation, and facilitate promotion and popularization.

[0038] The above-mentioned specific implementation manner cannot be used as a limitation on the protection scope of the present utility model. For those skilled in the art, any replacement, improvement or change made to the implementation manner of the present utility model falls within the protection scope of the present utility model.

[0039] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. High-precision signal distributor for gate opening meter, characterized by: It includes an input signal acquisition terminal, a signal amplifier and an isolation splitter that are arranged in coordination; the input signal acquisition terminal is used to collect the encoder input signal, the encoder is directly connected to the gate, and the movement of the gate drives the encoder to change the data; The signal amplifier is used to amplify the input signal to enhance the strength and stability of the input signal and reduce the loss in signal transmission; The isolation splitter is used to access and distribute the input signal to the port devices used to ensure that all port devices display consistent data and improve signal quality and accuracy.

2. The high-precision signal distributor for gate opening meter according to claim 1 is characterized in that: The port equipment includes a PLC and an opening meter.

3. The high-precision signal distributor for gate opening meter according to claim 1 is characterized in that: The input signal acquisition end includes an AD converter and a rope collection encoder that are electrically connected to each other to convert the input signal of the encoder into an analog signal or a digital signal; the model of the AD converter is AD8551, and 8 pins are provided on the AD converter, pin No. 3 of the AD converter is an input pin, and pin No. 5 of the AD converter is an output pin.

4. The high-precision signal distributor for gate opening meter according to claim 1 is characterized in that: The model of the signal amplifier is ICL7650, and 5 pins are provided on the signal amplifier. The signal amplifier is connected to the isolation splitter through pin No. 5, and pin No. 2 of the signal amplifier is connected to the input signal acquisition end through the twelfth resistor, the thirteenth resistor, the eighth capacitor and the ninth capacitor connected in parallel; the signal amplifier is connected to the input signal acquisition end through the tenth resistor, and the eleventh resistor is connected between pin No. 1 and pin No. 5 of the signal amplifier.

5. The high-precision signal distributor for gate opening meter according to claim 1 is characterized in that: A timer can also be set in the input signal acquisition end, and the timer is used to record the corresponding time node of data acquisition; the model of the timer is DS1302, and 8 pins are provided on the timer. A fourth capacitor and a fourth resistor are provided between pin 6 and pin 7 of the timer.

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