CN211013000U - Intelligent sensor - Google Patents
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- CN211013000U CN211013000U CN201922314267.9U CN201922314267U CN211013000U CN 211013000 U CN211013000 U CN 211013000U CN 201922314267 U CN201922314267 U CN 201922314267U CN 211013000 U CN211013000 U CN 211013000U
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Abstract
The utility model relates to a signal detection technical field, the utility model discloses an intelligent sensor, including MCU, signal conditioning unit, digital signal output unit, analog signal output unit and power adjustment unit, output to MCU after the detected signal passes through signal conditioning unit and amplifies the filtering, MCU built-in digital-to-analog converter and multiplier form the measuring value of settlement within the range after handling the analysis with received detected signal, digital signal output unit converts this measuring value into RS485 or TT L's digital signal and exports it to the equipment that supports RS485 or TT L agreement, analog signal output unit converts this measuring value into 0-5V's analog signal and exports it to the equipment that supports 0-5V voltage, make intelligent sensor possess signal acquisition, handle, the information exchange function, handle received detected signal for standard digital signal or analog signal output, thereby realized exchanging with the information of other intelligent products.
Description
Technical Field
The utility model relates to a signal detection technical field, concretely relates to intelligent sensor.
Background
From the application of intelligent factories, the implementation of monitoring networks such as power grids, air, roads and the like and the development field of sensors are continuously expanded. The artificial intelligence has been developed into thousands of households, household products become more and more intelligent, the world of everything interconnection is rapidly developing, and the most basic sensors cannot be separated in all aspects of life of people in the future. This is a significant opportunity for the sensor industry.
At present, in the market, most of output signals of the conventional sensor are current or voltage signals, and the analog signals are easily interfered by the external environment to influence the measurement precision, particularly the current signal sensor; and the sensor signals of various manufacturers have different sizes, so that a unified standard cannot be formed, corresponding hardware circuits are required to be matched, users are troublesome to use, and the development difficulty is increased.
Therefore, an intelligent sensor with signal acquisition, processing and information exchange functions is urgently needed, and the detection signal is processed into a standard digital signal or an analog signal to be output, so that information exchange with other intelligent products is realized.
SUMMERY OF THE UTILITY MODEL
In order to overcome the deficiency of the prior art, the utility model aims at providing an intelligent sensor has signal acquisition, processing, exchange information function, will detect signal processing and be the digital signal or the analog signal output of standard to the information exchange with other intelligent products has been realized.
In order to achieve the above purpose, the utility model adopts the technical scheme that: providing a smart sensor comprising
The MCU processes and analyzes the received detection signals through a built-in digital-to-analog converter and a multiplier to form a measurement value in a set range;
the signal adjusting unit is used for amplifying and adjusting the input detection signal through an operational amplifier circuit and then outputting the adjusted detection signal to the MCU;
a digital signal output unit for converting the measured value into a digital signal of RS485 or TT L so that the digital signal is output to a device supporting an RS485 or TT L protocol;
an analog signal output unit for converting the measured value into an analog signal of 0-5V so that the analog signal is output to a device supporting a voltage of 0-5V;
the power supply adjusting unit is used for providing working power for the MCU, the digital signal output unit and the analog signal output unit, and the power supply adjusting unit adjusts an external input power supply to be the working voltage of the MCU, the digital signal output unit and the analog signal output unit and then outputs the MCU, the digital signal output unit and the analog signal output unit.
Further, the signal adjusting unit comprises a switch U12, operational amplifiers U2A, U2B and U2C, a triode Q222, capacitors C9, C333 and C1, resistors R17, R18, R131, R16, R48, R151, R7, R8, R2, R5, R6, R333, R12, R14, R1, R3, R9, R10 and R11; the positive power supply of the operational amplifier U2A is respectively connected with a power supply 3.3V and one end of a capacitor C9, the other end of the capacitor C9 is grounded, the negative power supply of the operational amplifier U2A is grounded, the non-inverting input of the operational amplifier U2A is respectively connected with one end of a resistor R18 and one end of a resistor R17, the other end of the resistor R17 is connected with the power supply 3.3V, the other end of the resistor R18 is grounded, the inverting input of the operational amplifier U2A is respectively connected with one end of the resistor R48 and the output of the operational amplifier U2A, the output of the operational amplifier U2A is also respectively connected with one end of the resistor R131 and the pin 2 of the switch U12, and the other end of the resistor R131 is connected with the non-inverting input of the operational amplifier U2B; one end of the resistor R6 connected in parallel with the capacitor C333 is connected to one end of the resistor R151 and the inverting input of the operational amplifier U2B, the other end of the resistor R6 connected in parallel with the capacitor C333 is connected to the output of the operational amplifier U2B and the pin 1 of the switch U12, the pin 4 of the switch U12 is connected to the positive electrode of a detection signal, and the pin 3 of the switch U12 is connected to the negative electrode of the detection signal; the other end of the resistor R151 is connected to one end of the resistor R7, the other end of the resistor R7 is connected to the emitter of the transistor Q222 and one end of the resistor R8, the other end of the resistor R8 is connected to the anode of the MCU receiving the detection signal, the collector of the transistor Q222 is connected to the resistor R333, the other end of the resistor R333 is connected to the power supply 3.3V, the base of the transistor Q222 is connected to one end of the resistor R6 and one end of the resistor R5, the other end of the resistor R6 is connected to the cathode of the MCU receiving the detection signal, the other end of the resistor R5 is connected to one end of the resistor R2, the other end of the resistor R2 is connected to one end of the capacitor C1 and one end of the resistor R1, the other end of the resistor R1 is connected to one end of the resistor R3, and the other end of the resistor R3 is connected to one end of the resistor R9 and the inverting input of the operational amplifier U, the other end of the resistor R9 is connected with a reference voltage, the input of the operational amplifier U2C is respectively connected with one end of the resistor R12 and one end of the resistor R14, the other end of the resistor R12 is connected with the other end of the capacitor C1, the other end of the resistor R14 is connected with a power supply voltage, the non-inverting input of the operational amplifier U2C is respectively connected with one end of the resistor R10 and one end of the resistor R11, the other end of the resistor R10 is connected with the other end of the resistor R48, and the other end of the resistor R11 is connected with the reference voltage.
Further, the power supply adjusting unit comprises a power supply chip U6, a fuse F1, capacitors C14 and C15, a zener diode D1, and a polarity capacitor E1; one end of the fuse F1 is connected with a power supply 5V, the anode of the voltage-stabilizing diode D1 is connected with the cathode of the polar capacitor E1 and then grounded, and the other end of the fuse F1 is respectively connected with the cathode of the voltage-stabilizing diode D1 and the anode of the polar capacitor E1 and then connected with a 5V output; pin 3 of chip U6 connects 5V output respectively with the one end of electric capacity C14, pin 2 of chip U6 connect power 3.3V respectively with the one end of electric capacity C15, the other end of electric capacity C14 with the other end of electric capacity C15 with pin 1 of chip U6 links to each other the back ground connection.
Further, the digital signal output unit includes an analog-to-digital conversion chip U1, capacitors C1, C4 and C5, and resistors R2 and R3, a pin 1 of the chip U1 is connected to one end of the capacitor C4 and one end of the resistor R3, another end of the resistor R3 is connected to one end of the resistor R2 and one end of the capacitor C1 which are connected in parallel, and is further connected to the digital-to-analog converter of the MCU, another end of the resistor R2 and the capacitor C1 which are connected in parallel is grounded, a pin 6 of the chip U1 is connected to another end of the capacitor C4 and the input voltage, a pin 2 of the chip U1 is grounded, a pin 3 of the chip U1 is connected to a signal line, a pin 4 of the chip U1 is connected to a signal line, a pin 5 of the chip U1 is connected to one end of the capacitor C5 and the 5V output of the power supply adjustment unit, and another end of the capacitor C5.
Further, the analog signal output unit includes an analog chip U3, a filter L1, capacitors C8 and C16, pin 1 of the chip U3 is connected to the 5V output of the power adjustment unit and one end of the capacitor C8, the other end of the capacitor C8 is grounded, pin 2 of the chip U3 is connected to power supply 3.3V and one end of the capacitor C16, the other end of the capacitor C16 is grounded, pin 4 of pin 3 of the chip U3 is connected to one end of the filter L1, the other end of the filter L1 is connected to an analog signal output end, pin 5 of the chip U3 is connected to a signal trigger end of the MCU, pin 6 of the chip U3 is connected to a signal output end of the MCU, pin 7 of the chip U3 is connected to a signal output end of the MCU, and pin 8 of the chip U3 is grounded.
Furthermore, the model of the MCU is MSP430i2041, the digital-to-analog converter is 24 bits in 4 paths, and the multiplier is a 16-bit hardware multiplier.
Further, the operational amplifiers U2A, U2B and U2C are T L V2254, and the transistor Q222 is NPN.
Further, the model number of the power supply chip U2 is B L8503.
Further, the model of the analog-to-digital conversion chip U1 is ADS1110A0 IDBVT.
Further, the model of the analog chip U3 is TPC116S 1.
The beneficial effects of the utility model reside in that, the utility model provides an intelligent sensor, output to MCU after the detected signal passes through the signal adjustment unit and amplifies the filtering, MCU built-in digital-to-analog converter and multiplier form the measured value of setting for the within range after handling the analysis with received detected signal, digital signal output unit converts this measured value into RS485 or TT L's digital signal and exports it to the equipment that supports RS485 or TT L agreement, analog signal output unit converts this measured value into 0-5V's analog signal and exports it to the equipment that supports 0-5V voltage, make intelligent sensor possess signal acquisition, handle, exchange information function, be the digital signal or the analog signal output of standard with received detected signal processing, thereby realized exchanging with the information of other intelligent products.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a block diagram of a system of an intelligent sensor according to an embodiment of the present invention.
Fig. 2 is a schematic circuit diagram of a signal adjusting unit of an intelligent sensor according to an embodiment of the present invention.
Fig. 3 is a schematic circuit diagram of a power supply adjustment unit of an intelligent sensor according to an embodiment of the present invention.
Fig. 4 is a schematic circuit diagram of a digital signal output unit of an intelligent sensor according to an embodiment of the present invention.
Fig. 5 is a schematic circuit diagram of an analog signal output unit of the smart sensor according to an embodiment of the present invention.
The mark in the above figure is 1, MCU; 2. a signal adjusting unit; 3. a power supply adjusting unit; 41. a digital signal output unit; 42. an analog signal output unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
The technical solution of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 5, the present invention provides a preferred embodiment.
Referring to fig. 1, the present embodiment provides an intelligent sensor, including:
the MCU1, the MCU1 processes and analyzes the received detection signal through a built-in digital-to-analog converter and a multiplier to form a measurement value in a set range;
the signal adjusting unit 2 is used for amplifying and adjusting the input detection signal through an operational amplifier circuit, and then outputting the adjusted detection signal to the MCU 1;
the digital signal output unit 41, the digital signal output unit 41 is used for converting the measured value formed after the processing and analysis of the MCU1 into a digital signal of RS485 or TT L, and outputting the digital signal to a device supporting RS485 or TT L protocol;
the analog signal output unit 42 is used for converting a measured value formed after the MCU1 processes and analyzes the measured value into an analog signal of 0-5V and outputting the analog signal to a device supporting the voltage of 0-5V;
the power supply adjusting unit 3, the power supply adjusting unit 3 is used for providing working power supply for the MCU1, the digital signal output unit 41 and the analog signal output unit 42, the power supply adjusting unit 3 adjusts the external input power supply to the working voltage of the MCU1, the digital signal output unit 41 and the analog signal output unit 42 and then outputs the MCU1, the digital signal output unit 41 and the analog signal output unit 42.
According to the intelligent sensor provided by the technical scheme, the detection signal is amplified and filtered by the signal adjusting unit 2 and then is input into the MCU1, the digital-to-analog converter and the multiplier which are arranged in the MCU1 process and analyze the received detection signal to form a measurement value in a set range, the digital signal output unit 41 converts the measurement value into a digital signal of RS485 or TT L and outputs the digital signal to a device supporting the RS485 or TT L protocol, and the analog signal output unit 42 converts the measurement value into an analog signal of 0-5V and outputs the analog signal to a device supporting the voltage of 0-5V, so that the intelligent sensor has the functions of signal acquisition, processing and information exchange, processes the received detection signal into a standard digital signal or an analog signal and outputs the standard digital signal or the analog signal, and information exchange with other intelligent products is realized.
As an implementation manner of this embodiment, referring to fig. 2, the signal adjusting unit 2 includes a switch switching unit U12, operational amplifiers U2A, U2B, and U2C, a transistor Q222, capacitors C9, C333, and C1, resistors R17, R18, R131, R16, R48, R151, R7, R8, R2, R5, R6, R333, R12, R14, R1, R3, R9, R10, and R11; the positive power supply of the operational amplifier U2A is respectively connected with one end of a power supply 3.3V and one end of a capacitor C9, the other end of a capacitor C9 is grounded, the negative power supply of the operational amplifier U2A is grounded, the non-inverting input of the operational amplifier U2A is respectively connected with one end of a resistor R18 and one end of a resistor R17, the other end of the resistor R17 is connected with the power supply 3.3V, the other end of a resistor R18 is grounded, the inverting input of the operational amplifier U2A is respectively connected with one end of a resistor R48 and the output of the operational amplifier U2A, the output of the operational amplifier U2A is also respectively connected with one end of a resistor R131 and the pin 2 of the switch U12, and the other end of the resistor R131 is connected; one end of a resistor R6 and one end of a capacitor C333 which are connected in parallel are respectively connected with one end of a resistor R151 and the inverting input of an operational amplifier U2B, the other end of the resistor R6 and the other end of the capacitor C333 which are connected in parallel are respectively connected with the output of the operational amplifier U2B and a pin 1 of a switch switching U12, a pin 4 of the switch switching U12 is connected with the anode of a detection signal, and a pin 3 of the switch switching U12 is connected with the cathode of the detection signal; the other end of the resistor R151 is connected with one end of a resistor R7, the other end of the resistor R7 is respectively connected with an emitter of the triode Q222 and one end of a resistor R8, the other end of the resistor R8 is connected with a positive electrode of the MCU1 for receiving the detection signal, a collector of the triode Q222 is connected with a resistor R333, the other end of the resistor R333 is connected with a power supply 3.3V, a base of the triode Q222 is respectively connected with one end of a resistor R6 and one end of a resistor R5, the other end of the resistor R6 is connected with a negative electrode of the MCU1 for receiving the detection signal, the other end of the resistor R5 is connected with one end of a resistor R2, the other end of the resistor R2 is respectively connected with one end of a capacitor C1 and one end of a resistor R1, the other end of a resistor R1 is connected with one end of a resistor R3, the other end of a resistor R3 is respectively connected with one end of a resistor R9 and an inverted input of an operational amplifier U2 58, the other end of the resistor R12 is connected with the other end of the capacitor C1, the other end of the resistor R14 is connected with the power supply voltage, the non-inverting input of the operational amplifier U2C is respectively connected with one end of the resistor R10 and one end of the resistor R11, the other end of the resistor R10 is connected with the other end of the resistor R48, and the other end of the resistor R11 is connected with the reference voltage.
Thus, the signal adjusting unit 2 performs amplification and filtering processing on the detection signal, and outputs the processed signal to the analog-to-digital converter of the MCU1, so that the analog-to-digital converter and the multiplier of the MCU1 perform processing and analysis on the signal, thereby forming a standard measurement value, which can be directly applied by other intelligent products.
As an implementation manner of the present embodiment, the power supply adjusting unit 3 includes a power supply chip U6, a fuse F1, capacitors C14 and C15, a zener diode D1, a polarity capacitor E1; one end of a fuse F1 is connected with a power supply 5V, the anode of a voltage stabilizing diode D1 is connected with the cathode of a polar capacitor E1 and then grounded, and the other end of the fuse F1 is connected with the cathode of a voltage stabilizing diode D1 and the anode of a polar capacitor E1 respectively and then connected with a 5V output; pin 3 of the chip U6 is connected to 5V output and one end of a capacitor C14, pin 2 of the chip U6 is connected to a power supply 3.3V and one end of a capacitor C15, and the other end of the capacitor C14 and the other end of the capacitor C15 are connected to pin 1 of the chip U6 and then grounded.
In this way, the power adjusting unit 3 converts the external power into a 5V voltage, thereby providing a stable 5V power supply for the MCU1, the digital signal output unit 41, and the analog signal output unit 42.
As an implementation manner of this embodiment, the digital signal output unit 41 includes an analog-to-digital conversion chip U1, capacitors C1, C4, and C5, and resistors R2 and R3, wherein a pin 1 of the chip U1 is connected to one end of a capacitor C4 and one end of a resistor R3, one end of the resistor R3 connected in parallel to the resistor R2 and the capacitor C1 is connected to the digital-to-analog converter of the MCU1, the other end of the resistor R2 connected in parallel to the capacitor C1 is grounded, a pin 6 of the chip U1 is connected to the other end of the capacitor C4 and the input voltage, a pin 2 of the chip U1 is grounded, a pin 3 of the chip U1 is connected to a signal line, a pin 4 of the chip U1 is connected to a signal line, a pin 5 of the chip U1 is connected to one end of a capacitor C5 and the 5V output of the power adjustment unit 3.
Therefore, the digital signal output unit 41 converts the measured value processed and analyzed by the MCU1 into a digital signal of RS485 or TT L, so that the digital signal is directly output to the device supporting the RS485 or TT L protocol, that is, the digital signal output unit 41 converts the measured value processed and analyzed by the MCU1 into a digital signal of RS485 or TT L, and directly outputs the digital signal to the intelligent product supporting the RS485 or TT L protocol.
As an implementation manner of this embodiment, the analog signal output unit 42 includes an analog chip U3, a filter L, capacitors C8 and C16, a pin 1 of the chip U3 is respectively connected to the 5V output of the power adjustment unit 3 and one end of the capacitor C8, the other end of the capacitor C8 is grounded, a pin 2 of the chip U3 is respectively connected to one ends of the power supply 3.3V and the capacitor C16, the other end of the capacitor C16 is grounded, a pin 4 of a pin 3 of the chip U3 is connected to one end of the filter L, the other end of the filter L is connected to an analog signal output terminal, a pin 5 of the chip U3 is connected to a signal trigger terminal of the MCU1, a pin 6 of the chip U3 is connected to a signal output terminal of the MCU1, a pin 7 of the chip U3 is connected to a signal output terminal of the MCU1, and a pin 8.
The analog signal output unit 42 converts the measured value processed and analyzed by the MCU1 into an analog signal of 0-5V, so that the analog signal is directly output to a device supporting the voltage of 0-5V; that is, the analog signal output unit 42 converts the measured value formed after the MCU1 processes and analyzes into an analog signal of 0-5V, and directly outputs the analog signal to an intelligent product supporting a voltage of 0-5V.
Preferably, the model of the MCU1 is MSP430i2041, the digital-to-analog converter is 4-way 24-bit, and the multiplier is a 16-bit hardware multiplier.
Preferably, the operational amplifiers U2A, U2B, and U2C are T L V2254, and the transistor Q222 is NPN.
Preferably, the power chip U2 is B L8503.
Preferably, the model of the analog-to-digital conversion chip U1 is ADS1110A0 IDBVT.
Preferably, the model of the analog chip U3 is TPC116S 1.
The embodiments of the present invention have been described in detail, but the invention is not limited to the embodiments, and those skilled in the art can make many equivalent modifications or substitutions without departing from the spirit of the present invention, and the equivalent modifications or substitutions are included in the scope of protection defined by the claims of the present application.
Claims (10)
1. The intelligent sensor is characterized by comprising
The MCU processes and analyzes the received detection signals through a built-in digital-to-analog converter and a multiplier to form a measurement value in a set range;
the signal adjusting unit is used for amplifying and adjusting the input detection signal through an operational amplifier circuit and then outputting the adjusted detection signal to the MCU;
a digital signal output unit for converting the measured value into a digital signal of RS485 or TT L so that the digital signal is output to a device supporting an RS485 or TT L protocol;
an analog signal output unit for converting the measured value into an analog signal of 0-5V so that the analog signal is output to a device supporting a voltage of 0-5V;
the power supply adjusting unit is used for providing working power for the MCU, the digital signal output unit and the analog signal output unit, and the power supply adjusting unit adjusts an external input power supply to be the working voltage of the MCU, the digital signal output unit and the analog signal output unit and then outputs the MCU, the digital signal output unit and the analog signal output unit.
2. The smart sensor according to claim 1, wherein the signal adjusting unit includes a switch switching U12, operational amplifiers U2A, U2B and U2C, a transistor Q222, capacitors C9, C333 and C1, resistors R17, R18, R131, R16, R48, R151, R7, R8, R2, R5, R6, R333, R12, R14, R1, R3, R9, R10 and R11; the positive power supply of the operational amplifier U2A is respectively connected with a power supply 3.3V and one end of a capacitor C9, the other end of the capacitor C9 is grounded, the negative power supply of the operational amplifier U2A is grounded, the non-inverting input of the operational amplifier U2A is respectively connected with one end of a resistor R18 and one end of a resistor R17, the other end of the resistor R17 is connected with the power supply 3.3V, the other end of the resistor R18 is grounded, the inverting input of the operational amplifier U2A is respectively connected with one end of the resistor R48 and the output of the operational amplifier U2A, the output of the operational amplifier U2A is also respectively connected with one end of the resistor R131 and the pin 2 of the switch U12, and the other end of the resistor R131 is connected with the non-inverting input of the operational amplifier U2B; one end of the resistor R6 connected in parallel with the capacitor C333 is connected to one end of the resistor R151 and the inverting input of the operational amplifier U2B, the other end of the resistor R6 connected in parallel with the capacitor C333 is connected to the output of the operational amplifier U2B and the pin 1 of the switch U12, the pin 4 of the switch U12 is connected to the positive electrode of a detection signal, and the pin 3 of the switch U12 is connected to the negative electrode of the detection signal; the other end of the resistor R151 is connected to one end of the resistor R7, the other end of the resistor R7 is connected to the emitter of the transistor Q222 and one end of the resistor R8, the other end of the resistor R8 is connected to the anode of the MCU receiving the detection signal, the collector of the transistor Q222 is connected to the resistor R333, the other end of the resistor R333 is connected to the power supply 3.3V, the base of the transistor Q222 is connected to one end of the resistor R6 and one end of the resistor R5, the other end of the resistor R6 is connected to the cathode of the MCU receiving the detection signal, the other end of the resistor R5 is connected to one end of the resistor R2, the other end of the resistor R2 is connected to one end of the capacitor C1 and one end of the resistor R1, the other end of the resistor R1 is connected to one end of the resistor R3, and the other end of the resistor R3 is connected to one end of the resistor R9 and the inverting input of the operational amplifier U, the other end of the resistor R9 is connected with a reference voltage, the input of the operational amplifier U2C is respectively connected with one end of the resistor R12 and one end of the resistor R14, the other end of the resistor R12 is connected with the other end of the capacitor C1, the other end of the resistor R14 is connected with a power supply voltage, the non-inverting input of the operational amplifier U2C is respectively connected with one end of the resistor R10 and one end of the resistor R11, the other end of the resistor R10 is connected with the other end of the resistor R48, and the other end of the resistor R11 is connected with the reference voltage.
3. The smart sensor of claim 1, wherein the power supply adjustment unit comprises a power supply chip U6, a fuse F1, capacitors C14 and C15, a zener diode D1, a polarity capacitor E1; one end of the fuse F1 is connected with a power supply 5V, the anode of the voltage-stabilizing diode D1 is connected with the cathode of the polar capacitor E1 and then grounded, and the other end of the fuse F1 is respectively connected with the cathode of the voltage-stabilizing diode D1 and the anode of the polar capacitor E1 and then connected with a 5V output; pin 3 of chip U6 connects 5V output respectively with the one end of electric capacity C14, pin 2 of chip U6 connect power 3.3V respectively with the one end of electric capacity C15, the other end of electric capacity C14 with the other end of electric capacity C15 with pin 1 of chip U6 links to each other the back ground connection.
4. The smart sensor according to claim 1 or 3, wherein the digital signal output unit comprises an analog-to-digital conversion chip U1, capacitors C1, C4 and C5, resistors R2 and R3, a pin 1 of the chip U1 is connected with one end of the capacitor C4 and one end of the resistor R3 respectively, the other end of the resistor R3 is connected with one end of the resistor R2 and the capacitor C1 which are connected in parallel and then connected with the digital-to-analog converter of the MCU, the other end of the resistor R2 and the capacitor C1 which are connected in parallel are connected with ground, a pin 6 of the chip U1 is connected with the other end of the capacitor C4 and an input voltage respectively, a pin 2 of the chip U1 is connected with ground, a pin 3 of the chip U1 is connected with a signal line, a pin 4 of the chip U1 is connected with a signal line, and a pin 5V of the chip U1 is connected with one end of the capacitor C5 and a 5V output of the power supply adjustment, the other end of the capacitor C5 is grounded.
5. The smart sensor according to claim 1 or 3, wherein the analog signal output unit comprises an analog chip U3, a filter L1, capacitors C8 and C16, wherein pin 1 of the chip U3 is connected to the 5V output of the power adjustment unit and one end of the capacitor C8, the other end of the capacitor C8 is grounded, pin 2 of the chip U3 is connected to the 3.3V power supply and one end of the capacitor C16, the other end of the capacitor C16 is grounded, pin 4 of pin 3 of the chip U3 is connected to one end of the filter L1, the other end of the filter L1 is connected to an analog signal output terminal, pin 5 of the chip U3 is connected to a signal trigger terminal of the MCU, pin 6 of the chip U3 is connected to a signal output terminal of the MCU, pin 7 of the chip U3 is connected to a signal output terminal of the MCU, and pin 8 of the chip U3 is grounded.
6. The smart sensor of claim 1 wherein the MCU is model MSP430i2041, the digital to analog converter is 4-way 24-bit, and the multiplier is a 16-bit hardware multiplier.
7. The smart sensor of claim 2 wherein the operational amplifiers U2A, U2B, and U2C are of type T L V2254 and the transistor Q222 is of type NPN.
8. The smart sensor of claim 3 wherein the power chip U2 is model B L8503.
9. The smart sensor of claim 4 wherein the analog-to-digital conversion chip U1 is model ADS1110A0 IDBVT.
10. The smart sensor of claim 5 wherein the analog chip U3 is model TPC116S 1.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113110242A (en) * | 2021-05-14 | 2021-07-13 | 中国核动力研究设计院 | High-efficiency analog quantity signal output device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113110242A (en) * | 2021-05-14 | 2021-07-13 | 中国核动力研究设计院 | High-efficiency analog quantity signal output device |
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