CN219776887U - Integrated sensing transmitter - Google Patents
Integrated sensing transmitter Download PDFInfo
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- CN219776887U CN219776887U CN202223414259.XU CN202223414259U CN219776887U CN 219776887 U CN219776887 U CN 219776887U CN 202223414259 U CN202223414259 U CN 202223414259U CN 219776887 U CN219776887 U CN 219776887U
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Abstract
The utility model discloses an integrated sensing transmitter which comprises a shell, a vibration sensor module, a signal conditioning module, a controller module, a transmitting circuit module and a communication interface, wherein the signal conditioning module is connected with the sensor module, the controller module is provided with an AD interface, a DA interface and a USART interface, the signal conditioning module is connected with the controller module through the AD interface, the transmitting circuit module is connected with the controller module through the DA interface, the transmitting circuit module comprises a transmitting interface, and the communication interface is connected with the controller module through the USART interface. The integrated sensing transmitter obtained by the utility model can independently calibrate the sensor.
Description
Technical Field
The utility model relates to a sensor transmitting circuit, in particular to an integrated sensing transmitter.
Background
With the rapid development of modern information technology, a large number of sensors are arranged at the front end of industrial equipment and infrastructure to sense various status information. The sensor can have the change of parameters such as precision, linearity, sensitivity, frequency response and the like in use, so that the on-site monitoring data has deviation, the analysis result is influenced, and erroneous judgment can be caused when the on-site monitoring data is serious. The sensor in the prior art can only adopt a change-over mode, so that the field workload and the operation and maintenance cost are high.
The above disclosure of background art is only for aiding in understanding the inventive concept and technical solution of the present utility model, and it does not necessarily belong to the prior art of the present patent application, nor does it necessarily give technical teaching; the above background should not be used to assess the novelty and creativity of the present utility model in the event that no clear evidence indicates that such is already disclosed prior to the filing date of the present patent application.
Disclosure of Invention
The utility model aims to provide an integrated sensing transmitter, which solves the problem of inconvenient exchange caused by sensor faults in the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an integrated sensing transmitter, which is characterized by comprising the following components:
the shell is provided with a first communication port and a second communication port;
a vibration sensor module disposed partially or entirely within the housing;
the signal conditioning module is arranged in the shell and connected with the sensor module, and comprises a high-pass filter amplifying circuit and a low-pass filter amplifying circuit which are connected in series;
the controller module is arranged in the shell and is provided with an AD interface, a DA interface and a USART interface, and the signal conditioning module is connected with the controller module through the AD interface;
the transmission circuit module is arranged in the shell, is connected with the controller module through the DA interface and comprises a transmission interface, and the transmission interface is connected with the first communication port;
the communication interface is connected with the controller module through the USART interface, and the communication interface is connected with the second communication port.
Further, the high-pass filter amplifying circuit includes:
a first amplifier having a first input, a second input, and an output;
one end of the first resistor is connected with the second input end of the first amplifier;
one end of the second resistor is connected with the first input end of the first amplifier, and the other end of the second resistor is connected with a power supply;
one end of the third resistor is connected with the second input end of the first amplifier, and the other end of the third resistor is connected with the output end of the first amplifier;
one end of the fourth resistor is connected with the first input end of the first amplifier, and the other end of the fourth resistor is grounded;
one end of the first capacitor is connected with the other end of the first resistor, and the other end of the first capacitor is connected with the vibration sensor module;
and one end of the second capacitor is connected with a power supply and the first input end of the first amplifier, and the other end of the second capacitor is grounded.
Further, the low-pass filter amplification circuit includes:
the second amplifier is provided with a first input end, a second input end and an output end, and the output end is connected with the AD interface of the controller module;
one end of the fifth resistor is connected with the high-pass filtering amplifying circuit;
one end of the sixth resistor is connected with the other end of the fifth resistor, and the other end of the sixth resistor is connected with the first input end of the second amplifier;
one end of the seventh resistor is connected with the second input end of the second amplifier, and the other end of the seventh resistor is grounded;
one end of the eighth resistor is connected with the second input end of the second amplifier, and the other end of the eighth resistor is connected with the output end of the second amplifier;
one end of the third capacitor is connected with the other end of the fifth resistor, and the other end of the third capacitor is connected with the output end of the second amplifier;
and one end of the fourth capacitor is connected with the first input end of the second amplifier, and the other end of the fourth capacitor is grounded.
Optionally, the transmission circuit module is two-wire system, the transmission interface is used for accepting the power supply, the transmission circuit module still include the transmission chip and with triode, diode, fifth electric capacity, sixth electric capacity, seventh electric capacity, eighth electric capacity, the ninth resistance that the transmission chip is connected, the transmission chip passes through the ninth resistance with the DA interface connection of controller module, just the transmission chip with the transmission interface connection.
Optionally, the transmission circuit module is a three-wire system, the transmission circuit module further has a power supply interface, the power supply interface is used for receiving power supply, a third communication port is formed in the shell, and the power supply interface is connected with the third communication port.
Further, the vibration sensor module includes a magneto-electric vibration sensor.
Further, the communication interface is a TTL level interface or an RS485 interface.
Further, an indicator light is further arranged in the shell, the indicator light is connected with the controller, and an indicator light socket corresponding to the indicator light is further formed in the shell.
The technical scheme provided by the utility model has the following beneficial effects:
(1) The integrated sensing transmitter can interact with the upper computer operation unit through the communication interface, the sensor measurement data can be read out, if deviation occurs, the sensor can be independently corrected, and the output of the transmitter can be independently corrected, so that the trouble caused by the need of replacing the sensor is avoided;
(2) The online upgrade program can be realized through the communication interface, so that the integrated intelligent sensing transmitter can be upgraded on site to meet certain special requirements.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a schematic circuit diagram of an integrated sensor transmitter in accordance with an embodiment of the present utility model;
FIG. 2 is a block diagram of an integrated sensor transmitter in accordance with an embodiment of the present utility model.
Detailed Description
In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or device.
Referring to fig. 1 and 2, in one embodiment of the present utility model, there is provided an integrated sensing transmitter, characterized in that the integrated sensing transmitter includes:
the shell is provided with a first communication port and a second communication port;
a vibration sensor module disposed partially or entirely within the housing;
the signal conditioning module is arranged in the shell and connected with the sensor module, and comprises a high-pass filter amplifying circuit and a low-pass filter amplifying circuit which are connected in series;
the controller module is arranged in the shell and is provided with an AD interface, a DA interface and a USART interface, and the signal conditioning module is connected with the controller module through the AD interface;
the transmission circuit module is arranged in the shell, is connected with the controller module through the DA interface and comprises a transmission interface, and the transmission interface is connected with the first communication port;
the communication interface is connected with the controller module through the USART interface, and the communication interface is connected with the second communication port.
Referring to fig. 2, the sensor unit corresponds to a vibration sensor module, the signal conditioning circuit corresponds to a signal conditioning module, the main CPU corresponds to a controller module, the transmitting circuit corresponds to a transmitting circuit module, and when in use, an external acquisition device is connected with the transmitting circuit module, and an external upper computer operation unit is connected with a communication interface.
The main CPU adopts a low-power-consumption ARM chip, and in this embodiment, peripheral devices such as a CPU chip AD, DA, USART are used, and other peripheral circuits of the CPU are not shown in the figure.
In one embodiment of the present utility model, the high-pass filter amplifying circuit includes:
a first amplifier U1A, the first amplifier U1A having a first input, a second input, and an output;
a first resistor R1, wherein one end of the first resistor R1 is connected with the second input end of the first amplifier U1A;
one end of the second resistor R2 is connected with the first input end of the first amplifier U1A, and the other end of the second resistor R2 is connected with a power supply;
one end of the third resistor R3 is connected with the second input end of the first amplifier U1A, and the other end of the third resistor R3 is connected with the output end of the first amplifier U1A;
one end of the fourth resistor R4 is connected with the first input end of the first amplifier U1A, and the other end of the fourth resistor R4 is grounded;
one end of the first capacitor C1 is connected with the other end of the first resistor R1, and the other end of the first capacitor C1 is connected with the vibration sensor module;
and one end of the second capacitor C2 is connected with a power supply and the first input end of the first amplifier U1A, and the other end of the second capacitor C2 is grounded.
In one embodiment of the present utility model, the low-pass filter amplification circuit includes:
the second amplifier U1B is provided with a first input end, a second input end and an output end, and the output end is connected with the AD interface of the controller module;
the one end of the fifth resistor R5 is connected with the high-pass filtering and amplifying circuit;
a sixth resistor R6, wherein one end of the sixth resistor R6 is connected to the other end of the fifth resistor R5, and the other end of the sixth resistor R6 is connected to the first input end of the second amplifier U1B;
a seventh resistor R7, wherein one end of the seventh resistor R7 is connected with the second input end of the second amplifier U1B, and the other end of the seventh resistor R7 is grounded;
an eighth resistor R8, wherein one end of the eighth resistor R8 is connected with the second input end of the second amplifier U1B, and the other end of the eighth resistor R8 is connected with the output end of the second amplifier U1B;
one end of the third capacitor C3 is connected with the other end of the fifth resistor R5, and the other end of the third capacitor C3 is connected with the output end of the second amplifier U1B;
and one end of the fourth capacitor C4 is connected with the first input end of the second amplifier U1B, and the other end of the fourth capacitor C4 is grounded.
Referring to fig. 1, in an alternative embodiment of the present utility model, the transmitter circuit module is in a two-wire system, the transmitter interface J1 is used for receiving power, the transmitter circuit module further includes a transmitter chip U2, a triode Q1, a diode D1, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, and a ninth resistor R9, where the transmitter chip U2 is connected to the DA interface of the controller module through the ninth resistor R9, and the transmitter chip U2 is connected to the transmitter interface J1.
In an alternative embodiment of the present utility model, the transmitter circuit module is a three-wire system, and the transmitter circuit module further has a power supply interface, where the power supply interface is used for receiving power supply, a third communication port is formed on the housing, and the power supply interface is connected with the third communication port.
Referring to fig. 1, the principle of implementing integrated intelligent sensing and transmitting is specifically exemplified on a two-wire integrated intelligent vibration transmitter. The utility model is suitable for three-wire transmission and two-wire transmission. When the three-wire system is used, 24V working voltage is required to be provided for the transmitter, and the transmitter can output 4-20 mA or 1-5V signals; the two-wire system time transmission loop is a power supply loop, 4-20 mA power is supplied from a signal acquisition unit (such as DCS, PLC and the like), and the two-wire system is more suitable for a low-power consumption sensor.
The integrated intelligent sensing transmitter is interacted with the upper computer operation unit through the communication interface, the sensor measurement data can be read out, and if deviation occurs, the sensor can be independently corrected, and the output of the transmitter can be independently corrected. The correction mode is diversified, piecewise linear correction or piecewise curve fitting correction can be realized, point-by-point calibration can be realized in ultra-high precision occasions, and calibration data is stored in a CPU (Central processing Unit) on-chip storage unit. The main CPU has IAP on-line programming function, and can upgrade program on-line through communication interface, so that the integrated intelligent sensing transmitter can upgrade on-site to meet some special requirements, because IAP erases CPU internal FLASH and needs 15-20 mA working current, and the total current exceeds 20mA, DA unit output value is programmed in IAP on-line programming guide program, so that the transmitting output reaches 24mA to meet the current needed by whole circuit operation (at this moment, acquisition unit or calibration tool is required to output at least 24 mA), thereby realizing program upgrade in two-wire system power supply mode.
Referring to fig. 1, in one embodiment of the present utility model, the vibration sensor module includes a magneto-electric vibration sensor ZD.
Referring to fig. 1, in one embodiment of the present utility model, the communication interface J2 is a TTL level interface or an RS485 interface.
In one embodiment of the utility model, an indicator light is further arranged in the shell, the indicator light is connected with the controller, and an indicator light socket corresponding to the indicator light is further arranged on the shell.
In a specific embodiment of the utility model, the transmission adopts a two-wire constant current source to supply power, and a 4-20 mA transmission circuit is composed of a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, a diode D1, a triode Q1, a ninth resistor R9 and a transmission chip U2. The communication interface adopts a TTL interface, so that low power consumption is ensured. The sensor signal enters an AD interface on the main CPU after passing through the signal conditioning circuit to convert the analog signal into a digital signal, and the CPU finishes the sampling, calculation and transmission output functions of the signal.
The sensor unit module can be various sensors, the signal conditioning module can be correspondingly adjusted according to different sensors, the main CPU module can realize measurement and calculation of analog signals of the sensors and simultaneously give corresponding transmitting signals, realize data interaction with a communication interface, upload original measurement data of the sensors through the communication interface, and also realize on-site setting, calibration and storage of parameters. The intelligent software can be further updated on line through the communication interface.
The utility model solves the problem that the sensor is difficult to calibrate in use, and also enables the sensor to be upgradeable in use.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is merely illustrative of the embodiments of this utility model and it will be appreciated by those skilled in the art that variations and modifications may be made without departing from the principles of the utility model, and it is intended to cover all modifications and variations as fall within the scope of the utility model.
Claims (8)
1. An integrated sensing transmitter, the integrated sensing transmitter comprising:
the shell is provided with a first communication port and a second communication port;
a vibration sensor module disposed partially or entirely within the housing;
the signal conditioning module is arranged in the shell and connected with the sensor module, and comprises a high-pass filter amplifying circuit and a low-pass filter amplifying circuit which are connected in series;
the controller module is arranged in the shell and is provided with an AD interface, a DA interface and a USART interface, and the signal conditioning module is connected with the controller module through the AD interface;
the transmission circuit module is arranged in the shell, is connected with the controller module through the DA interface and comprises a transmission interface, and the transmission interface is connected with the first communication port;
the communication interface is connected with the controller module through the USART interface, and the communication interface is connected with the second communication port.
2. The integrated sensor transmitter of claim 1 wherein the high pass filter amplifier circuit comprises: a first amplifier having a first input, a second input, and an output;
one end of the first resistor is connected with the second input end of the first amplifier;
one end of the second resistor is connected with the first input end of the first amplifier, and the other end of the second resistor is connected with a power supply;
one end of the third resistor is connected with the second input end of the first amplifier, and the other end of the third resistor is connected with the output end of the first amplifier;
one end of the fourth resistor is connected with the first input end of the first amplifier, and the other end of the fourth resistor is grounded;
one end of the first capacitor is connected with the other end of the first resistor, and the other end of the first capacitor is connected with the vibration sensor module;
and one end of the second capacitor is connected with a power supply and the first input end of the first amplifier, and the other end of the second capacitor is grounded.
3. The integrated sensing transmitter of claim 1, wherein: the low-pass filter amplification circuit includes: the second amplifier is provided with a first input end, a second input end and an output end, and the output end is connected with the AD interface of the controller module;
one end of the fifth resistor is connected with the high-pass filtering amplifying circuit;
one end of the sixth resistor is connected with the other end of the fifth resistor, and the other end of the sixth resistor is connected with the first input end of the second amplifier;
one end of the seventh resistor is connected with the second input end of the second amplifier, and the other end of the seventh resistor is grounded;
one end of the eighth resistor is connected with the second input end of the second amplifier, and the other end of the eighth resistor is connected with the output end of the second amplifier;
one end of the third capacitor is connected with the other end of the fifth resistor, and the other end of the third capacitor is connected with the output end of the second amplifier;
and one end of the fourth capacitor is connected with the first input end of the second amplifier, and the other end of the fourth capacitor is grounded.
4. The integrated sensing transmitter of claim 1, wherein: the power supply circuit comprises a power supply circuit module, a power supply interface, a power supply circuit module and a power supply circuit module, wherein the power supply circuit module is in a two-wire system, the power supply circuit module further comprises a power supply chip, a triode, a diode, a fifth capacitor, a sixth capacitor, a seventh capacitor, an eighth capacitor and a ninth resistor, the power supply circuit module is connected with the power supply circuit module through the DA interface of the controller module, and the power supply circuit module is connected with the power supply circuit module through the ninth resistor.
5. The integrated sensing transmitter of claim 1, wherein: the transmission circuit module is a three-wire system, the transmission circuit module is further provided with a power supply interface, the power supply interface is used for receiving power supply, a third communication port is formed in the shell, and the power supply interface is connected with the third communication port.
6. The integrated sensing transmitter of claim 1, wherein: the vibration sensor module includes a magneto-electric vibration sensor.
7. The integrated sensing transmitter of claim 1, wherein: the communication interface is a TTL level interface or an RS485 interface.
8. The integrated sensing transmitter of claim 1, wherein: the shell is internally provided with an indicator lamp which is connected with the controller, and the shell is also provided with an indicator lamp socket corresponding to the indicator lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223414259.XU CN219776887U (en) | 2022-12-20 | 2022-12-20 | Integrated sensing transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223414259.XU CN219776887U (en) | 2022-12-20 | 2022-12-20 | Integrated sensing transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219776887U true CN219776887U (en) | 2023-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223414259.XU Active CN219776887U (en) | 2022-12-20 | 2022-12-20 | Integrated sensing transmitter |
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|---|---|
| CN (1) | CN219776887U (en) |
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- 2022-12-20 CN CN202223414259.XU patent/CN219776887U/en active Active
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