阅读说明：本技术 一种混凝土传感器的驱动检测电路及检测设备 (Concrete sensor's drive detection circuitry and check out test set ) 是由 鲁红亮 梁启轩 严丽萍 于 2020-07-21 设计创作，主要内容包括：本发明公开了一种混凝土传感器的驱动检测电路及检测设备,包括信号给定模块、通道选择模块以及处理模块,信号给定模块能够与混凝土传感器连接并且能够输出给定信号,通道选择模块包括多个采集端,各个采集端能够对应地与混凝土传感器的各个检测电极连接,处理模块分别与信号给定模块以及通道选择模块连接,处理模块能够控制信号给定模块输出的给定信号,处理模块能够分别控制通道选择模块的采集端工作并且获取通道选择模块对混凝土传感器的采集信号,本设计能够制定多种对混凝土传感器的不同检测电极的驱动采集策略,从而能够快速地检测出不同检测电极的特性,得知混凝土结构的状态情况,提高检测效率。(The invention discloses a driving detection circuit and detection equipment of a concrete sensor, which comprise a signal giving module, a channel selection module and a processing module, wherein the signal giving module can be connected with the concrete sensor and can output a given signal, the channel selection module comprises a plurality of acquisition ends, each acquisition end can be correspondingly connected with each detection electrode of the concrete sensor, the processing module is respectively connected with the signal giving module and the channel selection module, the processing module can control the given signal output by the signal giving module, the processing module can respectively control the acquisition ends of the channel selection module to work and acquire the acquisition signal of the channel selection module to the concrete sensor, the design can formulate a plurality of driving acquisition strategies to different detection electrodes of the concrete sensor, thereby rapidly detecting the characteristics of the different detection electrodes, the state condition of the concrete structure is known, and the detection efficiency is improved.)

1. A drive detection circuit for a concrete sensor, comprising: the signal giving module can be connected with the concrete sensor and can output a given signal;

the channel selection module comprises a plurality of acquisition ends, and each acquisition end can be correspondingly connected with each detection electrode of the concrete sensor;

the processing module is respectively connected with the signal giving module and the channel selection module, the processing module can control given signals output by the signal giving module, and the processing module can respectively control the acquisition end of the channel selection module to work and acquire the acquisition signals of the channel selection module to the concrete sensor.

2. The drive detection circuit of a concrete sensor according to claim 1, characterized in that: the processing module comprises a main control module and a signal conversion module, the main control module is respectively connected with the signal giving module and the channel selection module, the main control module can control given signals output by the signal giving module, the main control module can respectively control the collection end of the channel selection module to work, and the signal conversion module is respectively connected with the main control module and the channel selection module to input collected signals of the concrete sensor into the main control module.

3. The drive detection circuit of a concrete sensor according to claim 2, characterized in that: the signal conversion module comprises a signal amplification unit and an analog-to-digital conversion unit, and the channel selection module, the signal amplification unit, the analog-to-digital conversion unit and the master control module are sequentially connected.

4. The drive detection circuit of a concrete sensor according to claim 2, characterized in that: the channel selection module is an electrical property detection module, the electrical property detection module is connected with the signal conversion module, the plurality of acquisition ends are connected with the electrical property detection module, and the main control module is connected with the electrical property detection module to control the work of different acquisition ends to acquire the electrical property between different detection electrodes.

5. The drive detection circuit of a concrete sensor according to claim 4, characterized in that: the electrical property detection module comprises a first channel acquisition unit and a first channel switching unit, the output end of the first channel acquisition unit is connected with the signal conversion module, one pole of the detection end of the first channel acquisition unit is connected with one acquisition end of the first channel acquisition unit, the other pole of the detection end of the first channel acquisition unit is connected with the first channel switching unit, part of the acquisition end is connected with the first channel switching unit, the main control module is connected with the first channel switching unit to switch different acquisition ends on the first channel unit and the other pole of the detection end of the first channel acquisition unit to be communicated, and the first channel acquisition unit can detect the voltage between the two acquisition ends.

6. The drive detection circuit of a concrete sensor according to claim 5, characterized in that: the electrical property detection module further comprises a first switch unit and a first sampling resistor, the first switch unit and the first sampling resistor form a first series branch, the main control module is connected with the first switch unit to control the on-off of the first switch unit, one end of the first series branch is connected with one electrode of the detection end of the first channel acquisition unit, and the other end of the first series branch is connected with the conducted acquisition end through the first channel switching unit.

7. The drive detection circuit of a concrete sensor according to claim 6, characterized in that: the electrical property detection module also comprises a second channel acquisition unit, a second channel switching unit, a second sampling resistor and a second switch unit, wherein the second switch unit is respectively connected with one pole of the detection end of the first channel acquisition unit and one acquisition end thereof, the main control module is connected with the second switch unit to control the on-off of the second switch unit, the signal given module is respectively connected with the other pole of the detection end of the first channel acquisition unit and one pole of the detection end of the second channel acquisition unit, part of the acquisition ends are connected with the second channel switching unit, one end of the second sampling resistor is connected with the second channel switching unit, the main control module is connected with the second channel switching unit to switch the connection of different acquisition ends on the second channel switching unit and one end of the second sampling resistor, and a second series branch is formed between the second sampling resistor and the collection end communicated with the second channel switching unit and between the second sampling resistor and the collection end communicated with the first channel switching unit, and the signal given module is respectively connected with two ends of the second series branch.

8. The drive detection circuit for a concrete sensor according to claim 7, characterized in that: the collecting end is respectively provided with a plurality of anode collecting ends, a cathode collecting end and a reinforcing steel bar electrode collecting end, the cathode collecting end is connected with the second switch unit, the anode collecting ends are respectively connected with the first channel switching unit and the second channel switching unit, and the reinforcing steel bar electrode collecting end is connected with the first channel switching unit or the second channel switching unit.

9. The drive detection circuit for a concrete sensor according to claim 7, characterized in that: the signal given module comprises a signal modulation unit and a third switching unit, the signal modulation unit can output at least one constant-frequency pulse signal as a given signal, the signal modulation unit outputs a given signal for the second serial branch through the third switching unit, and the main control module is connected with the third switching unit to control the third switching unit to be switched on and switched off.

10. A test apparatus comprising a drive test circuit for a concrete sensor according to any one of claims 1 to 9.

Technical Field

The invention relates to the field of bridge and tunnel quality inspection, in particular to a driving detection circuit and detection equipment of a concrete sensor.

Background

At present, in buildings such as bridges, tunnels, parking lots and the like, concrete reinforcement structures are easily affected with damp, and the existing concrete sensors for detecting the aging degree of the concrete reinforcement structures generally comprise a detection electrode, wherein the detection electrode generally comprises a plurality of steel anodes, titanium oxide cathodes, steel bar electrodes, a PT1000 temperature sensor and the like; measurement of the electrolyte resistivity between adjacent steel anodes allows the determination of the moisture distribution within the concrete.

For the driving detection of the concrete sensor, because the detection items are more, different devices need to be adopted aiming at different detection items in the past, even for the parameter measurement between different electrodes, the positions of the acquisition ends connected to different electrodes need to be manually replaced by workers, so that the corresponding parameters are detected, the operation of the workers is troublesome, the detection efficiency is low, and the equipment cost is higher because a plurality of devices need to be adopted.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a driving detection circuit of a concrete sensor, which can be used for rapidly detecting each parameter and improving the detection efficiency.

The invention also provides detection equipment which is high in detection efficiency and low in detection cost.

According to a first aspect embodiment of the present invention, a drive detection circuit of a concrete sensor includes: the signal giving module can be connected with the concrete sensor and can output a given signal; the channel selection module comprises a plurality of acquisition ends, and each acquisition end can be correspondingly connected with each detection electrode of the concrete sensor; the processing module is respectively connected with the signal giving module and the channel selection module, the processing module can control given signals output by the signal giving module, and the processing module can respectively control the acquisition end of the channel selection module to work and acquire the acquisition signals of the channel selection module to the concrete sensor.

The driving detection circuit of the concrete sensor according to the embodiment of the invention has at least the following beneficial effects:

according to the driving detection circuit of the concrete sensor, the channel selection module can switch different acquisition ends to work, so that the characteristics of different detection electrodes in the concrete sensor are detected, meanwhile, the processing module can control given signals output by the signal giving module, and the design processing module can make various driving acquisition strategies for different detection electrodes of the concrete sensor through controlling the signal giving module and the channel selection module, so that the characteristics of different detection electrodes can be quickly detected, the state condition of a concrete structure can be known, and the detection efficiency is improved.

According to some embodiments of the present invention, the processing module includes a main control module and a signal conversion module, the main control module is respectively connected to the signal providing module and the channel selecting module, the main control module can control the given signal output by the signal providing module, the main control module can respectively control the operation of the acquisition end of the channel selecting module, and the signal conversion module is respectively connected to the main control module and the channel selecting module to input the acquisition signal of the concrete sensor to the main control module.

According to some embodiments of the present invention, the signal conversion module includes a signal amplification unit and an analog-to-digital conversion unit, and the channel selection module, the signal amplification unit, the analog-to-digital conversion unit, and the main control module are sequentially connected.

According to some embodiments of the present invention, the channel selection module is an electrical detection module, the electrical detection module is connected to the signal conversion module, the plurality of collection terminals are connected to the electrical detection module, and the main control module is connected to the electrical detection module to control different collection terminals to operate to collect electrical characteristics between different detection electrodes.

According to some embodiments of the present invention, the electrical property detection module includes a first channel collection unit and a first channel switching unit, an output end of the first channel collection unit is connected to the signal conversion module, one pole of a detection end of the first channel collection unit is connected to one collection end thereof, the other pole of the detection end of the first channel collection unit is connected to the first channel switching unit, a part of the collection ends are connected to the first channel switching unit, the main control module is connected to the first channel switching unit to switch different collection ends of the first channel collection unit to communicate with the other pole of the detection end of the first channel collection unit, and the first channel collection unit can detect a voltage between the two collection ends.

According to some embodiments of the present invention, the electrical property detection module further includes a first switch unit and a first sampling resistor, the first switch unit and the first sampling resistor form a first serial branch, the main control module is connected to the first switch unit to control the first switch unit to be turned on or off, one end of the first serial branch is connected to one pole of the detection end of the first channel acquisition unit, and the other end of the first serial branch is connected to the turned-on acquisition end through the first channel switching unit.

According to some embodiments of the present invention, the electrical property detection module further includes a second channel collection unit, a second channel switching unit, a second sampling resistor, and a second switch unit, the second switch unit is respectively connected to one pole of the detection end of the first channel collection unit and one collection end thereof, the main control module is connected to the second switch unit to control the second switch unit to be turned on or off, the signal given module is respectively connected to the other pole of the detection end of the first channel collection unit and one pole of the detection end of the second channel collection unit, a part of the collection ends are connected to the second channel switching unit, one end of the second sampling resistor is connected to the second channel switching unit, the main control module is connected to the second channel switching unit to switch different collection ends of the second channel switching unit to be communicated with one end of the second sampling resistor, and a second series branch is formed between the second sampling resistor and the collection end communicated with the second channel switching unit and between the second sampling resistor and the collection end communicated with the first channel switching unit, and the signal given module is respectively connected with two ends of the second series branch.

According to some embodiments of the present invention, the collecting end has a plurality of anode collecting ends, a plurality of cathode collecting ends and a plurality of reinforcing bar electrode collecting ends, the cathode collecting ends are connected to the second switch unit, the plurality of anode collecting ends are connected to the first channel switching unit and the second channel switching unit, respectively, and the reinforcing bar electrode collecting ends are connected to the first channel switching unit or the second channel switching unit.

According to some embodiments of the present invention, the signal setting module includes a signal modulation unit and a third switching unit, the signal modulation unit is capable of outputting at least one constant frequency pulse signal as a setting signal, the signal modulation unit outputs a setting signal for the second serial branch through the third switching unit, and the main control module is connected to the third switching unit to control on and off of the third switching unit.

According to a second aspect embodiment of the invention, the detection device comprises a concrete sensor driving detection circuit disclosed in any one of the above embodiments.

The detection device provided by the embodiment of the invention at least has the following beneficial effects:

the detection equipment provided by the invention utilizes the drive detection circuit disclosed by any embodiment to carry out data acquisition on the concrete sensor, one equipment finishes various acquisition strategies, the detection efficiency is high, and the detection cost is reduced.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a block diagram of a schematic structure of a driving detection circuit according to an embodiment of the present invention;

FIG. 2 is a schematic circuit diagram of a main control module of a driving detection circuit according to an embodiment of the present invention;

FIG. 3 is a schematic circuit diagram of a power supply module of the driving detection circuit according to an embodiment of the present invention;

FIG. 4 is a circuit diagram of a signal providing module of the driving detection circuit according to an embodiment of the present invention;

FIG. 5 is a circuit diagram of a channel selection module of a driving detection circuit according to an embodiment of the present invention;

FIG. 6 is a circuit diagram of a first switch unit, a second switch unit and a third switch unit of a driving detection circuit according to an embodiment of the invention;

FIG. 7 is a circuit diagram of a signal conversion module of the driving detection circuit according to an embodiment of the present invention;

FIG. 8 is an equivalent circuit diagram of the drive detection circuit for open-circuit potential detection according to the embodiment of the present invention;

FIG. 9 is an equivalent circuit diagram of the drive detection circuit versus the corrosion current detection of the embodiment of the present invention;

fig. 10 is an equivalent circuit diagram of the drive detection circuit for detecting the resistance between the electrodes according to the embodiment of the present invention.

Reference numerals:

the signal processing device comprises a signal giving module 100, a signal modulation unit 110, a third switching unit 120, a channel selection module 200, a first channel acquisition unit 210, a first channel switching unit 220, a second channel acquisition unit 230, a second channel switching unit 240, a processing module 300, a main control module 310, a signal conversion module 320, a signal amplification unit 321, an analog-to-digital conversion unit 322, a first switching unit 400, a second switching unit 500 and a power supply module 600.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the positional or orientational descriptions referred to, for example, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are based on the positional or orientational relationships shown in the drawings and are for convenience of description and simplicity of description only, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.