Monitoring equipment

Abstract

The invention discloses a monitoring device, and relates to the technical field of detection, and the monitoring device comprises a vibration unit which is used for generating a voltage signal and transmitting the voltage signal to a processing module; the processing module comprises an amplifying circuit used for amplifying the voltage signals and a first single-chip microcomputer connected with the amplifying circuit. The beneficial effects of the invention are that the monitoring end collects the starting and stopping time of the circuit breaker hydraulic mechanism pressing motor and the current of the motor on site, and transmits the information to the receiving end through the 4G network; the receiving end carries out necessary processing after receiving the data, and can display the starting and stopping time of a pressing motor of the circuit breaker hydraulic mechanism, the motor current and the number of pressing times in a period of time, thereby achieving the remote monitoring of the circuit breaker hydraulic mechanism.

Description

Technical Field

[0001] The invention relates to the field of detection technology, in particular to a monitoring device. Background Art

[0002] At present, the hydraulic mechanism pressure signal of the substation circuit breaker is generally connected through the contact of the main circuit contactor of the pressure motor, which drives the auxiliary contact to be connected through the potential signal to transmit the pressure signal to the measurement and control device, and then the measurement and control device transmits it to the telecontrol device and telecontrol system through the network for use by dispatchers or operators. This technology requires that the pressure signal of the circuit breaker hydraulic mechanism be connected to the comprehensive automation system of the substation. The substations put into operation this year can meet this requirement; however, for some substations that were put into operation earlier, the pressure signal of the circuit breaker hydraulic mechanism is not connected to the comprehensive automation system of the substation, so the pressure monitoring of the circuit breaker hydraulic mechanism cannot be realized through this technology. Personnel need to go to the site for manual inspection and transcription to realize the pressure monitoring of the circuit breaker hydraulic mechanism.

[0003] At present, after the hydraulic mechanism pressure signal of the substation is transmitted to a distant place through the substation integrated automation system, the dispatching or operating personnel can only view the start time and stop time of the pressure, and manually analyze and judge the data. They are unable to analyze the data and automatically issue early warnings to circuit breakers with frequent pressure to assist personnel in judging the operating conditions of the equipment. Summary of the invention

[0004] Some simplifications or omissions may be made in this section and the abstract and title of the present application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the above-mentioned prior art problems, the present invention is proposed.

[0006] The present invention aims to provide a monitoring device, which aims to solve the problem of how to detect the voltage-pressing motor online.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a monitoring device, comprising a monitoring terminal,

[0008] It includes a vibration unit, the vibration unit is used to generate a voltage signal and transmit the voltage signal to the processing module;

[0009] The processing module includes an amplifier circuit for amplifying the voltage signal and a single chip microcomputer connected to the amplifier circuit.

[0010] As a preferred solution of the monitoring device of the present invention, wherein: the amplifying circuit comprises an amplifier, the inverting input terminal of the amplifier is connected to a No. 1 resistor, and the non-inverting input terminal is connected to a No. 2 resistor;

[0011] The first resistor and the second resistor are connected to the signal input terminal;

[0012] The amplifier is connected to a diode, the other end of the diode is connected to a resistor No. 3 and a resistor No. 4, and the other end of the resistor No. 4 is connected to the reverse input end of the amplifier, the other end of the resistor No. 3 is connected to a capacitor No. 1, and the other end of the capacitor No. 1 is grounded;

[0013] A No. 5 resistor is connected between the in-phase input terminal of the amplifier and the No. 2 resistor, and the other end of the No. 5 resistor is grounded.

[0014] As a preferred solution of the monitoring device of the present invention, wherein: the pin of the No. 1 single chip microcomputer is connected to the current sensor interface and the No. 2 capacitor, and the other end of the No. 2 capacitor is grounded; the current sensor interface is externally connected to a current sensor.

[0015] As a preferred solution of the monitoring device of the present invention, wherein: the first single-chip microcomputer is externally connected to a voice module, the voice module includes a voice module interface, and the pins of the voice module interface are connected to the speaker interface.

[0016] As a preferred solution of the monitoring device of the present invention, the voice module interface is externally connected to a 5V voltage, and the access end is externally connected to a voltage-stabilizing diode.

[0017] As a preferred solution of the monitoring device of the present invention, wherein: the first single-chip microcomputer is externally connected to a 4G module.

[0018] As a preferred solution of the monitoring device of the present invention, wherein: the receiving end connected through the 4G module includes a second single-chip microcomputer, and the second single-chip microcomputer is also connected to a voice module and a 4G module.

[0019] As a preferred solution of the monitoring device of the present invention, wherein: the second single chip microcomputer is externally connected to a USB system.

[0020] As a preferred solution of the monitoring device of the present invention, the first single-chip microcomputer and the second single-chip microcomputer are both externally connected to a high-speed crystal oscillator circuit.

[0021] The beneficial effects of the monitoring equipment of the present invention are as follows: the monitoring end collects the start and stop time and motor current of the circuit breaker hydraulic mechanism pressing motor on site, and transmits this information to the receiving end through the 4G network; the receiving end performs necessary processing after receiving the data, and can display the start and stop time of the circuit breaker hydraulic mechanism pressing motor, the motor current, and the number of pressing times within a period of time to realize remote monitoring of the circuit breaker hydraulic mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0023] Figure 1 This is a brief idea of ​​the monitoring end in the present invention.

[0024] Figure 2 A brief idea of ​​the monitoring device in the present invention

[0025] Figure 3 is a circuit diagram of the amplifier circuit in the present invention.

[0026] Figure 4 This is the current sensor interface circuit in the present invention.

[0027] Figure 5 This is a schematic diagram of the pins of the single-chip microcomputer chip No. 1 in the present invention.

[0028] Figure 6 This is the voice module interface circuit in the present invention.

[0029] Figure 7 This is the 4G module interface circuit in the present invention.

[0030] Figure 8 This is a schematic diagram of the pins of the second single-chip microcomputer chip in the present invention.

[0031] Fig. 9 It is a composition diagram of the high-speed crystal oscillator circuit in the present invention.

[0032] Fig.10 It is a composition diagram of the reset circuit in the present invention.

[0033] Fig.11 This is a pin connection diagram of the download interface in the present invention. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0037] Example 1

[0038] Reference Figures 1-2 , which is the first embodiment of the present invention, and provides a monitoring device, including a vibration unit 100, the vibration unit 100 is used to generate a voltage signal and transmit the voltage signal to a processing module 200;

[0039] The processing module 200 includes an amplifier circuit 300 for amplifying a voltage signal and a first single-chip microcomputer 400 connected to the amplifier circuit.

[0040] Among them, the vibration unit 100 is used to collect and convert the pressure signal of the hydraulic mechanism of the pressure motor substation circuit breaker into a voltage signal. Vibration sensors, piezoelectric sheets, etc. can be used. This scheme uses piezoelectric sheets, and the voltage sheet is a vibrator composed of two piezoelectric ceramics or a piezoelectric ceramic and a metal sheet; when voltage is applied to the piezoelectric ceramic, it will produce mechanical deformation as the voltage and frequency change. Conversely, when the piezoelectric ceramic is vibrated, an electric charge will be generated. Using this unique physical effect, when ultrasonic vibration is applied to the element, an electrical signal will also be generated, and then the electrical signal will be transmitted to the amplifier circuit 300 in the processing module 200; because the voltage signal generated by the piezoelectric sheet induction vibration is very weak, it is necessary to amplify this signal, and then use the ADC peripherals of the first single-chip microcomputer 400 to perform accurate voltage detection, and then use the single-chip microcomputer 400 to store the data; here, the first single-chip microcomputer 400 uses a single-chip microcomputer model STM32F103C8T6.

[0041] In summary, when the vibration unit 100 is vibrated, the vibration is converted into a voltage signal through the voltage chip and transmitted to the amplifier circuit in the processing module 200. The amplifier circuit amplifies the voltage signal and transmits it to the first single-chip microcomputer 400. The single-chip microcomputer records the voltage value generated by the operation of the voltage chip, thereby recording the number of times the motor is pressed and the voltage value each time; subsequently, the written voltage value can be judged whether it is qualified based on manual experience.

[0042] Example 2

[0043] Reference Figures 3 to 11 , which is a second embodiment of the present invention, includes an amplifier circuit 300 including an amplifier U1, wherein the inverting input terminal of the amplifier U1 is connected to a first resistor R1, and the non-inverting input terminal is connected to a second resistor R2;

[0044] The first resistor R1 and the second resistor R2 are connected to the signal input terminal P1;

[0045] The amplifier U1 is connected to a diode D1, the other end of the diode D1 is connected to a third resistor R3 and a fourth resistor R4, and the other end of the fourth resistor R4 is connected to the reverse input end of the amplifier U1, the other end of the third resistor R3 is connected to a first capacitor C1, and the other end of the first capacitor C1 is grounded;

[0046] A fifth resistor R5 is connected between the non-inverting input terminal of the amplifier U1 and the second resistor R2, and the other end of the fifth resistor R5 is grounded.

[0047] Among them, a resistor No. 1 R1 and a resistor No. 2 R2 are connected between the amplifier U1 and the signal input terminal P1, and the resistor No. 1 R1 is connected to the inverting input terminal of the amplifier U1, and the resistor No. 2 R2 is connected to the non-inverting input terminal of the amplifier U1; at the same time, the positive terminal of the amplifier U1 is connected to a 3.3V voltage, the negative terminal is grounded, and the output terminal is connected to a diode D1; the end of the diode D1 away from the output terminal of the amplifier U1 is connected to the pin ZDADC1 of the first microcontroller 400, so as to transmit the voltage signal to the first microcontroller 400. It is mainly used to solve the problem that the piezoelectric film generates a small voltage, which leads to the subsequent inability to identify.

[0048] Pin PA0 of the No. 1 single chip computer 400 is connected to the current sensor interface U11 and the No. 2 capacitor C2, and the other end of the No. 2 capacitor C2 is grounded; the current sensor interface U11 is externally connected to a current sensor.

[0049] Among them, the circuit sensor interface U11 can be connected to the circuit sensor open-loop Hall current sensor; pin 3 of the circuit sensor interface U11 is connected to pin PA0 of the first microcontroller 400, and capacitor No. 2 C2 is connected between pin 3 of the circuit sensor interface U11 and pin PA0 of the first microcontroller 400. At the same time, the other end of capacitor No. 2 C2 is grounded, which can help stabilize the output voltage and reduce output fluctuations caused by current changes, which is very helpful for improving the stability and accuracy of measurement data.

[0050] The first single chip computer 400 is externally connected to a voice module 500, and the voice module 500 includes a voice module interface U38, and the pins SPK1 and SPK2 of the voice module interface U38 are connected to the speaker interface CN1.

[0051] Among them, the voice module interface U38 pin SPK1 and pin SPK2 in the voice module 500 are connected to the speaker interface CN1. This interface can be used to connect the speaker to realize the alarm function. At the same time, the pin 5 of the voice module interface U38 is externally connected to the No. 108 resistor, and the other end of the No. 108 resistor is connected to an LED light, which is grounded to show whether the voice module 500 can operate normally; the pin TX, pin RX, and pin BUSY of the voice module interface U38 are respectively connected to the pin PA10, pin PA9, and pin PA8 of the No. 1 single-chip computer 400; in order to realize the alarm function, the voice module 500 supports dual decoding of MP3 and WAV formats, and has built-in SPI-FLASH as a storage medium. Users can connect the module to the computer via a data cable and freely change the audio content in FLASH. In addition, the module also has a built-in 3W power amplifier that can drive a 3W speaker, and the baud rate is optional, which is more convenient and flexible to use.

[0052] The voice module interface U38 is externally connected to a 5V voltage, and the access end is externally connected to a voltage regulator diode D6.

[0053] Pin VCC of the voice module interface U38 is connected to the voltage-stabilizing diode D6, and the other end is connected to a 5V voltage to prevent the voltage from being too low and the module from burning out.

[0054] The No. 1 single chip computer 400 is externally connected to a 4G module.

[0055] Among them, the 4G module includes a 4G module interface U37, and the 4G module interface U37 adopts an AIR780E module; the pins DTR, TXD, and RXD of the 4G module interface U37 are respectively connected to the pins PB11, PA2, and PA3 of the No. 1 single-chip computer 400, and at the same time, the pin GND of the 4G module interface U37 is grounded, and the pin VIN is connected to a 5V voltage, so as to realize information exchange between the 4G module and the No. 1 single-chip computer 400.

[0056] The receiving end connected via the 4G module includes a second single chip microcomputer 600, and the second single chip microcomputer 600 is also connected to the voice module 500 and the 4G module.

[0057] The second single chip computer 600 is externally connected to a USB system.

[0058] Among them, the signal of the second single-chip computer 600 is STM32F407VET6, and in order to intuitively display the received detection data, the receiving end is equipped with a Taojingchi serial port screen. The screen is connected to the main control unit through a carefully designed interface circuit, and can display various detection data in real time. At the same time, the main control used by the receiving end is the STM32F407VET6 single-chip computer, and its circuit diagram has been optimized to ensure high performance and stability. The pin functions of this single-chip computer are rich and varied, including 4G module communication interface, U disk compatible interface, reset pin, program download and debugging pin, UART interface, and USB OTG interface. The support of these pins enables the receiving end to realize a variety of complex functions and interact efficiently with external devices; the 4G module communication interface U37 includes TX sending and RX receiving pins for data communication of the 4G module. The 4G module is used between the two single-chip computers to realize information interaction and ensure information intercommunication. In the receiving end, the voice module and the 4G module are the same as the monitoring end, and the power supply voltage is also consistent.

[0059] The first single-chip microcomputer 400 and the second single-chip microcomputer 600 are both externally connected with a high-speed crystal oscillator circuit.

[0060] The first single-chip microcomputer 400 and the second single-chip microcomputer 600 in the monitoring end and the receiving end are both externally connected with a high-speed crystal oscillator circuit, wherein the high-speed crystal oscillator circuit is composed of capacitors C8, C9 and crystal X2, wherein the two ends of crystal X2 are connected to capacitors C8 and C9, and the other ends of capacitors C8 and C9 are grounded. At the same time, the pins OSC_IN and OSC_OUT are connected to the pins PD0 and PD1 of the first single-chip microcomputer 400 and the pins PH0 and PH1 of the second single-chip microcomputer 600 to provide a clock signal.

[0061] It should be noted that both the single-chip microcomputer No. 1 400 and the single-chip microcomputer No. 2 600 are externally connected to a reset circuit, which consists of a capacitor C12, a resistor R90, and a switch SW4. One end of the capacitor C12 is grounded, and the other end is connected to the resistor R90. At the same time, it is connected to the pin NRST of the single-chip microcomputer No. 1 400 and the single-chip microcomputer No. 2 600 for debugging purposes.

[0062] Both the first single-chip microcomputer 400 and the second single-chip microcomputer 600 are externally connected to a download port H1, and pin 4, pin 2, and pin 1 of the download port H1 are respectively connected to pin PA13, pin PA14, and NRST of the first single-chip microcomputer 400.

[0063] It should be noted that in order to facilitate the use of the equipment, this circuit is powered by a conventional 220V voltage, and the voltage supply circuit is used for voltage reduction. A conventional step-down circuit is used to reduce the 220V voltage to 12V, 5V, and 3.3V respectively, and then a filter circuit is connected to process internal noise and other influencing factors, and then the corresponding interface is connected. These are all existing technologies and will not be repeated here.

[0064] In summary, the suppressing motor causes the vibration unit 100 to vibrate, and the piezoelectric sheet collects the suppressing signal of the hydraulic mechanism of the suppressing motor substation circuit breaker and converts it into a voltage signal. Since the voltage signal is weak, the voltage signal is then amplified by the amplifier circuit 300 in the processing module 200, and then transmitted to the first single-chip computer 400. At this time, the signal generated by the suppressing motor in the working state is recorded. This signal can be marked as the "determination value" under the working state, that is, the signal within this signal range indicates that the suppressing motor is in normal working state; and this information is transmitted to the receiving end through the 4G module, and then the receiving end records the signal, displays it on the screen terminal, and writes it to the USB system, recording the data of each suppressing motor for subsequent manual inspection; if it exceeds this range, it means that the suppressing motor is abnormal. At this time, the signal is transmitted to the voice module 500 to realize an alarm, informing the operator that the suppressing motor is abnormal and handling it in time.

[0065] The advantage of this solution is that the start and stop time of the circuit breaker hydraulic mechanism's pressing motor and the motor current are collected on-site, and this information is transmitted to the receiving end through the 4G network; after receiving the data, the receiving end performs necessary processing and can display the start and stop time of the circuit breaker hydraulic mechanism's pressing motor, the motor current, and the number of pressing times within a period of time, thereby realizing remote monitoring of the circuit breaker hydraulic mechanism.

[0066] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0067] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention).

[0068] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0069] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A monitoring device, characterized in that: Including monitoring terminal, It comprises a vibration unit (100), wherein the vibration unit (100) is used to generate a voltage signal and transmit the voltage signal to a processing module (200); The processing module (200) comprises an amplifier circuit (300) for amplifying a voltage signal and a first single-chip microcomputer (400) connected to the amplifier circuit.

2. The monitoring device according to claim 1, characterized in that: The amplifier circuit (300) comprises an amplifier (U1), wherein the inverting input terminal of the amplifier (U1) is connected to a first resistor (R1), and the non-inverting input terminal is connected to a second resistor (R2); The first resistor (R1) and the second resistor (R2) are connected to the signal input terminal (P1); The amplifier (U1) is connected to a diode (D1), the other end of the diode (D1) is connected to a third resistor (R3) and a fourth resistor (R4), and the other end of the fourth resistor (R4) is connected to the reverse input end of the amplifier (U1), the other end of the third resistor (R3) is connected to a first capacitor (C1), and the other end of the first capacitor (C1) is grounded; A fifth resistor (R5) is connected between the in-phase input terminal of the amplifier (U1) and the second resistor (R2), and the other end of the fifth resistor (R5) is grounded.

3. The monitoring device according to claim 2, characterized in that: The pin (PA0) of the No. 1 single chip computer (400) is connected to a current sensor interface (U11) and a No. 2 capacitor (C2), and the other end of the No. 2 capacitor (C2) is grounded; the current sensor interface (U11) is externally connected to a current sensor.

4. The monitoring device according to claim 3, characterized in that: The first single-chip computer (400) is externally connected to a voice module (500), the voice module (500) includes a voice module interface (U38), and a pin (SPK1) and a pin (SPK2) of the voice module interface (U38) are connected to a speaker interface (CN1).

5. The monitoring device according to claim 4, characterized in that: The voice module interface (U38) is externally connected to a 5V voltage, and the access end is externally connected to a voltage-stabilizing diode (D6).

6. The monitoring device according to claim 4, characterized in that: The first single chip computer (400) is externally connected to a 4G module.

7. The monitoring device according to claim 6, characterized in that: A receiving end connected via a 4G module comprises a second single chip microcomputer (600), and the second single chip microcomputer (600) is also connected to a voice module (500) and a 4G module.

8. The monitoring device according to claim 7, characterized in that: The second single chip computer (600) is externally connected to a USB system.

9. The monitoring device according to claim 7, characterized in that: The first single chip microcomputer (400) and the second single chip microcomputer (600) are both externally connected to a high-speed crystal oscillator circuit.

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