CN213069017U

CN213069017U - Electromagnetic radiation alarm device and system

Info

Publication number: CN213069017U
Application number: CN202021164784.9U
Authority: CN
Inventors: 夏金雁; 罗辉
Original assignee: Miaos Medical Technology Shanghai Co ltd
Current assignee: Miaos Medical Technology Shanghai Co ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2021-04-27
Anticipated expiration: 2030-06-22

Abstract

The utility model belongs to the technical field of electromagnetic radiation, a electromagnetic radiation alarm device and system is provided, its device includes: and the sensor circuit is used for acquiring electromagnetic analog signals of the equipment to be detected. And the filtering and amplifying circuit is connected with the sensor circuit and is used for filtering and amplifying the electromagnetic analog signals. And the analog-to-digital conversion circuit is connected with the filtering and amplifying circuit and is used for converting the electromagnetic analog signals output by the filtering and amplifying circuit into electromagnetic digital signals. And the MCU control circuit is connected with the analog-to-digital conversion circuit and used for calculating the electromagnetic radiation value of the equipment to be detected according to the electromagnetic digital signal. And the alarm circuit is connected with the MCU control circuit and is used for giving an electromagnetic radiation alarm when the electromagnetic radiation value of the equipment to be detected exceeds a threshold value. The problem that products sold in the market at present can not form a complete system only by simple detection and can not serve enterprises well is solved, and the electromagnetic radiation can be conveniently and accurately evaluated to automatically alarm and upload data to a management platform through a network.

Description

Electromagnetic radiation alarm device and system

Technical Field

The utility model relates to an electromagnetic radiation technical field indicates an electromagnetic radiation alarm device and system especially.

Background

With the rapid development of electronic information technology, various electronic products have come into existence, which brings great convenience to people's lives and brings electromagnetic radiation pollution. Electromagnetic radiation is colorless, odorless, invisible and untouchable, and cannot be perceived through sense organs. Studies have demonstrated that electromagnetic radiation over a certain extent and for a certain time can have varying degrees of influence on the human body and equipment.

At present, most of commercially available electromagnetic radiation detection products can only carry out detection, cannot form a complete system and cannot upload detection results to a management platform through a network to form a data table for data analysis and quality control of enterprises. In view of this, it is important to develop a detection device that meets the needs of the enterprise.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an electromagnetic radiation alarm device and system solves present market product and only detects and can not form complete system, the problem of service enterprise that can not be fine to realize convenient, accurate aassessment electromagnetic radiation with automatic alarm and with data through the network upload to management platform.

The utility model provides a technical scheme as follows:

an electromagnetic radiation alarm device comprising:

and the sensor circuit is used for acquiring electromagnetic analog signals of the equipment to be detected.

And the filtering and amplifying circuit is connected with the sensor circuit and is used for filtering and amplifying the electromagnetic analog signal.

And the analog-to-digital conversion circuit is connected with the filtering amplification circuit and is used for converting the electromagnetic analog signals output by the filtering amplification circuit into electromagnetic digital signals.

And the MCU control circuit is connected with the analog-to-digital conversion circuit and used for calculating the electromagnetic radiation value of the equipment to be detected according to the electromagnetic digital signal.

And the alarm circuit comprises a buzzer, is connected with the MCU control circuit and is used for alarming electromagnetic radiation when the electromagnetic radiation value of the equipment to be detected exceeds a threshold value.

Further preferably, the sensor circuit comprises an EP-105 sensor probe, and a signal output terminal of the sensor probe is connected with a signal input terminal of the filtering and amplifying circuit.

Further preferably, the filtering and amplifying circuit includes:

and the active filter sub-circuit is connected with the signal output end of the sensor circuit through the signal input end of the filter sub-circuit and is used for receiving the electromagnetic analog signal and filtering the electromagnetic analog signal.

The signal input end of the amplifying sub-circuit is connected with the signal output end of the active filtering sub-circuit and is used for amplifying the filtered electromagnetic analog signal; and the signal output end of the amplifying sub-circuit is connected with the signal input end of the analog-to-digital conversion circuit and is used for outputting the amplified electromagnetic analog signal.

Further preferably, the active filtering sub-circuit comprises:

the circuit comprises a diode, a first capacitor, a first resistor, a second capacitor, a third resistor, a third capacitor, a fourth resistor, a fifth resistor and an amplifier.

The first end of the diode is used as the signal input end of the active filter sub-circuit and connected with the signal output end of the sensor circuit, the second end of the diode is grounded through the first capacitor and the first resistor, the second end of the diode is also connected with the first end of the second resistor, and the second resistor is grounded through the second capacitor.

The output end of the amplifier is used as the signal output end of the active filter sub-circuit and is connected with the signal input end of the amplification sub-circuit, the output end of the amplifier is connected with the non-inverting input end through the third capacitor and the third resistor, the output end of the amplifier is further connected with the inverting input end through the fourth resistor, and the inverting input end is grounded through the fifth resistor.

Further preferably, the amplifying sub-circuit comprises: a first operational amplifier and a second operational amplifier.

The non-inverting input end of the first operational amplifier is connected with the signal output end of the active filter sub-circuit, the first mismatch adjusting end of the first operational amplifier is connected with the second mismatch adjusting end through a seventh resistor, the inverting input end of the first operational amplifier is grounded, the enabling end of the first operational amplifier is connected with an external potentiometer, the voltage reference end of the first operational amplifier is connected with an external reference voltage, and the output end of the first operational amplifier is connected with the inverting input end of the second operational amplifier through an eighth resistor and used for carrying out primary amplification processing on the electromagnetic analog signal.

The inverting input end of the second operational amplifier is connected with the output end of the second operational amplifier through a ninth resistor, and the non-inverting input end of the second operational amplifier is grounded through a tenth resistor and is used for performing secondary amplification processing on the electromagnetic analog signal subjected to the primary amplification processing.

Further preferably, the analog-to-digital conversion circuit includes: an A/D converter.

And the first end of the A/D converter is used as the signal input end of the analog-to-digital conversion circuit and connected with the signal output end of the amplification sub-circuit, and is used for receiving the amplified electromagnetic analog signal.

The A/D converter is used for converting the electromagnetic analog signal into an electromagnetic digital signal.

And the second end of the A/D converter is used as the signal output end of the analog-to-digital conversion circuit and connected with the MCU control circuit, and is used for transmitting the electromagnetic digital signal to the MCU control circuit.

Further preferably, the MCU control circuit includes:

the STC15 single-chip microcomputer, the built-in data memory of STC15 single-chip microcomputer, procedure memory and clock, the STC15 single-chip microcomputer is connected with peripheral circuit for STC151 normal operating.

And the display circuit is internally provided with an HD44780 interface type liquid crystal display controller, is connected with the STC15 single chip microcomputer and is used for displaying the electromagnetic radiation value of the equipment to be detected.

Further preferably, the MCU control circuit further includes:

and the clock circuit is connected with the STC15 single chip microcomputer and is used for setting a clock.

And the keyboard control circuit is connected with the STC15 single chip microcomputer and is used for controlling a keyboard.

And the network circuit is connected with the STC15 single chip microcomputer and is used for sending the electromagnetic radiation value of the equipment to be detected.

The utility model also provides an electromagnetic radiation alarm system, include electromagnetic radiation alarm device and host computer manager.

And the upper computer manager is connected with a network circuit of the electromagnetic radiation alarm device and is used for receiving and storing the detection data of the electromagnetic radiation alarm device.

The utility model provides a pair of electromagnetic radiation alarm device and system have following beneficial effect at least:

1) the utility model provides a product that sells on the market at present only detects and can not form complete system, the problem of service enterprise that can not be fine to realize convenient, accurate aassessment electromagnetic radiation with automatic alarm and with data through the network upload to management platform.

2) Through the utility model provides an electromagnetic radiation alarm device mainly realizes data acquisition, data processing, data network transmission, warning suggestion, data display, functions such as human-computer interaction.

3) And filtering the signal picked up by the sensor probe by adopting an active low-pass filter to remove high-frequency components. Because the signal sensed by the sensor is weak, the signal needs to be amplified through a low-noise amplifier, and impedance matching needs to be carried out at the interface of the sensor and the amplifying circuit so as to obtain the optimal signal.

4) The utility model discloses in adopt EP-105 sensor probe, be applicable to 100kHz-1GHz frequency range, the frequency band is wide, and the reliability is high, satisfies the measurement design requirement.

5) In the scheme, in order to meet the requirements of small system noise coefficient and wide frequency band, two-stage amplification is adopted, and a first stage adopts an operational amplifier with high common-mode rejection ratio and linear low power consumption; the second stage employs a high precision, low offset voltage type operational amplifier. The signal is amplified in two stages and sent to A/D converter.

6) The utility model discloses the resolution ratio to EP-105 detector sensor probe promptly is 0.01V/m, adopts 12 bit AD converter MCP3202 to do its minimum resolution ratio of analog to digital conversion and be 5/4096 ═ 0.00122V, satisfies the user demand far away.

7) And the data are transmitted to an upper computer manager through a network, and the upper computer manager analyzes, processes and stores the data after receiving the data so as to provide the basis of product quality control for enterprises.

Drawings

The above features, technical features, advantages and modes of realisation of an electromagnetic radiation warning device will be further described in the following, in a clearly understandable manner, with reference to the accompanying drawings, which illustrate preferred embodiments.

Fig. 1 is a schematic structural diagram of an embodiment of an electromagnetic radiation alarm device according to the present invention;

FIG. 2 is a schematic circuit diagram of the MCU control circuit of the present invention;

fig. 3 is a schematic circuit diagram of an active filter sub-circuit according to the present invention;

FIG. 4 is a schematic circuit diagram of an amplifier sub-circuit of the present invention;

fig. 5 is a schematic circuit diagram of a network circuit according to the present invention;

fig. 6 is a schematic circuit diagram of the MCU control circuit part connected to the network circuit in the present invention;

fig. 7 is a schematic circuit diagram of a display circuit according to the present invention;

fig. 8 is a schematic diagram of an embodiment of an electromagnetic radiation alarm system of the present invention;

fig. 9 is a schematic diagram of another embodiment of an electromagnetic radiation alarm system of the present invention;

fig. 10 is a flowchart of an electromagnetic radiation alarm method according to the present invention.

Detailed Description

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

For the sake of simplicity, only the parts relevant to the present invention are schematically shown in the drawings, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

In addition, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.

In order to more clearly illustrate embodiments of the present invention or technical solutions in the prior art, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.

An embodiment of the present invention, as shown in fig. 1, is an electromagnetic radiation alarm device 10, comprising:

the sensor circuit 101 is used for acquiring electromagnetic analog signals of equipment to be detected;

the filtering and amplifying circuit 102 is connected with the sensor circuit 101 and is used for filtering and amplifying the electromagnetic analog signal;

the analog-to-digital conversion circuit 103 is connected with the filtering and amplifying circuit 102 and is used for converting the electromagnetic analog signal output by the filtering and amplifying circuit 102 into an electromagnetic digital signal;

the MCU control circuit 104 is connected with the analog-to-digital conversion circuit 103 and used for calculating the electromagnetic radiation value of the equipment to be detected according to the electromagnetic digital signal;

alarm circuit 105, alarm circuit 105 includes bee calling organ, with MCU control circuit 104 is connected for when the electromagnetic radiation value of waiting to examine equipment exceeds the threshold value, carries out the electromagnetic radiation and reports to the police.

Further preferably, the sensor circuit 101 comprises an EP-105 sensor probe, a signal output terminal of which is connected to a signal input terminal of the filter amplifier circuit 102.

Specifically, the device adopts an EP-105 sensor probe, is suitable for the frequency range of 100kHz-1GHz, has wide frequency band and high reliability, and meets the measurement design requirements.

Further preferably, the filtering and amplifying circuit 102 includes:

the active filter sub-circuit is connected with the signal output end of the sensor circuit 101 through the signal input end of the filter sub-circuit, and is used for receiving the electromagnetic analog signal and filtering the electromagnetic analog signal;

the signal input end of the amplifying sub-circuit is connected with the signal output end of the active filtering sub-circuit and is used for amplifying the filtered electromagnetic analog signal; the signal output end of the amplifying sub-circuit is connected with the signal input end of the analog-to-digital conversion circuit 103, and is used for outputting the amplified electromagnetic analog signal.

Further preferably, as shown in fig. 2, the active filtering sub-circuit includes:

The first end of the diode is used as the signal input end of the active filter sub-circuit and connected with the signal output end of the sensor circuit 101, the second end of the diode is grounded through the first capacitor and the first resistor, the second end of the diode is also connected with the first end of the second resistor, and the second resistor is grounded through the second capacitor.

For example, as shown in fig. 2, a diode D2, a first capacitor C14, a first resistor R8, a second resistor R2, a second capacitor C2, a third resistor R3, a third capacitor C1, a fourth resistor R1, a fifth resistor R9, and an amplifier.

A first terminal of the diode D2 is connected to a signal output terminal of the sensor circuit 101 as a signal input terminal of the active filter sub-circuit, a second terminal of the diode D2 is connected to ground through the first capacitor C14 and the first resistor R8, a second terminal of the diode D2 is further connected to a first terminal of the second resistor R2, and the second resistor R2 is connected to ground through the second capacitor C2.

The output end (1) of the amplifier is used as the signal output end of the active filtering sub-circuit and is connected with the signal input end of the amplifying sub-circuit, the third capacitor C1 and the third resistor R3 are connected with the non-inverting input end (3), the output end (1) of the amplifier is further connected with the inverting input end (2) through the fourth resistor R1, and the inverting input end (2) is further grounded through the fifth resistor R9.

Illustratively, an active low pass filter is used to filter the signal picked up by the sensor probe to remove high frequency components.

Because the signal sensed by the sensor is weak, the signal needs to be amplified through a low-noise amplifier, and impedance matching needs to be carried out at the interface of the sensor and the amplifying circuit so as to obtain the optimal signal.

Specifically, in order to meet the requirements of small system noise coefficient and wide frequency band, a circuit adopts two-stage amplification, and a first stage adopts an operational amplifier with high common-mode rejection ratio and linear low power consumption; the second stage employs a high precision, low offset voltage type operational amplifier. The signal is amplified in two stages and sent to A/D converter.

As shown in fig. 3, the amplification sub-circuit includes: a first operational amplifier U8 and a second operational amplifier U9.

A non-inverting input end (3) of the first operational amplifier U8 is connected to a signal output end of the active filtering sub circuit, a first mismatch adjustment end (1) of the first operational amplifier U8 is connected to a second mismatch adjustment end (8) through a seventh resistor R11, an inverting input end (2) of the first operational amplifier U8 is grounded, enable ends (4, 7) of the first operational amplifier U8 are connected to an external potentiometer, a voltage reference end (5) of the first operational amplifier U8 is connected to an external reference voltage, and an output end (6) of the first operational amplifier U8 is connected to the inverting input end (2) of the second operational amplifier U9 through an eighth resistor R12 for performing a first-stage amplification process on the electromagnetic analog signal;

the inverting input end (2) of the second operational amplifier U9 is connected with the output end (6) of the second operational amplifier U9 through a ninth resistor R10, and the non-inverting input end (3) of the second operational amplifier U9 is grounded through a tenth resistor R13 and is used for performing secondary amplification processing on the electromagnetic analog signal subjected to the primary amplification processing.

Further preferably, the analog-to-digital conversion circuit 103 includes: an A/D converter;

a first end of the a/D converter is connected to a signal output end of the amplifying sub-circuit as a signal input end of the analog-to-digital conversion circuit 103, and is configured to receive the amplified electromagnetic analog signal.

The second end of the a/D converter is connected to the MCU control circuit 104 as the signal output end of the analog-to-digital conversion circuit 103, and is configured to transmit the electromagnetic digital signal to the MCU control circuit 104.

Exemplarily, since the resolution of the EP-105 detector, i.e., the sensor probe, is 0.01V/m, the minimum resolution of the analog-to-digital conversion using the 12-bit a/D converter MCP3202 is 5/4096-0.00122V, which is far enough for the use requirement.

MCP3202 is a 12-bit successive approximation Analog-to-Digital (A/D) converter with on-chip sample and hold circuitry. MCP3202 may be programmed as a single channel pseudo-differential input pair or a dual channel single ended input. Differential Nonlinearity (DNL) is specified as + -1 LSB, and Integral Nonlinearity (INL) is specified as + -1 LSB (MCP3202-B) and + -2 LSB (MCP 3202-C). It communicates with the device using a simple serial interface that conforms to the SPI protocol. The operating voltage range of the MCP3202 device is very wide, ranging from 2.7V to 5.5V. The low current design makes it consume only the typical standby and operating currents of 500nA and 375 uA. It is easy to interface with an industry standard microprocessor or microcontroller (single chip microcomputer). These characteristics have all greatly satisfied the analog-to-digital conversion demand of signal, and in the conversion process of signal, MCP3202 converts the signal after preceding stage circuit processing into digital signal, sends to MCU (singlechip) further processing.

Further preferably, the MCU control circuit 104 includes:

the STC15 single chip microcomputer is internally provided with a data memory, a program memory and a clock, and the STC15 single chip microcomputer is connected with a peripheral circuit to enable the STC151 to normally run;

Further preferably, the MCU control circuit 104 further includes:

the clock circuit is connected with the STC15 single chip microcomputer and is used for setting a clock;

the keyboard control circuit is connected with the STC15 single chip microcomputer and is used for controlling a keyboard;

The network module part, namely a network circuit, is mainly responsible for transmitting data to an upper computer management platform, namely an upper computer manager 20, through a network, and the upper computer manager 20 analyzes, processes and stores the data after receiving the data so as to provide a basis for product quality control for enterprises.

Exemplarily, as shown in fig. 4, an MCU control circuit 104 includes an STC15 single chip microcomputer U2, a buzzer, i.e., an alarm circuit 105, connected to a port (30) of the STC15 single chip microcomputer U2, and switch circuits S1, S2, and S3 connected to ports (4, 5, and 7) of the STC15 single chip microcomputer U2; and ports (11, 12) of the STC15 singlechip U2 are connected with a crystal oscillator circuit.

The MCU control circuit 104 employs an STC15 series MCU, which has the following characteristics: a 2K high-capacity SRAM data memory is arranged in the SRAM; wide voltage, low power consumption; 60K bytes Flash program memory in the chip; a built-in high-precision R/C clock (+ -0.3%) can be set from 5MHz to 28 MHz; 6 timers, 2 16-bit reloadable timers T0 and T1; the system comprises an ultra-high-speed double serial port/UART and two completely independent high-speed asynchronous serial communication ports; an SPI high-speed synchronous serial communication interface; hardware Watchdog (WDT); 42 general I/O ports, four modes can be set: quasi-bidirectional port/weak pull-up, strong push pull/strong pull-up, only input/high resistance, open drain; the driving capability of each I/O port can reach 20 mA. The MCU has powerful functions and is suitable for most complex control application occasions.

The MCU control circuit 104 is mainly composed of an MCU, i.e., a single chip microcomputer, a liquid crystal display, i.e., a display circuit, a key, i.e., a keyboard control circuit, an analog-to-digital conversion, i.e., an analog-to-digital conversion circuit 103, and a network module, i.e., a network circuit. The display part, namely the display circuit, selects an SMC2004A dot matrix Liquid Crystal Display (LCD), can display 20 characters x4 lines of western characters, is internally provided with an HD44780 interface type liquid crystal display controller, and can be directly connected with a singlechip.

As shown in fig. 5 and 6, ports (1 to 6) of the network circuit are connected to ports (24 to 29) of the MCU control circuit 104, respectively.

As shown in fig. 8, the present invention further provides an embodiment of an electromagnetic radiation alarm system, which includes the electromagnetic radiation alarm device 10 and the upper computer manager 20.

And the upper computer manager 20 is connected with the network circuit of the electromagnetic radiation alarm device 10 and is used for receiving and storing the detection data of the electromagnetic radiation alarm device 10.

The upper computer management platform, namely the upper computer manager 20, is used for analyzing and processing data uploaded by the lower computer, namely the electromagnetic radiation alarm device 10 in real time, and has the main functions of displaying and storing quality data of on-site detected equipment, namely equipment to be detected, alarming, setting parameters, controlling the equipment, printing data reports and the like, so that the product quality control of enterprises is guaranteed.

As shown in fig. 9, the present invention further provides another embodiment of an electromagnetic radiation alarm system, which may specifically include:

the sensor shown in fig. 9, the filter network shown in fig. 9 is an active filter sub-circuit, the amplification shown in fig. 9 is an amplification sub-circuit, the digital-to-analog conversion circuit shown in fig. 9, the MCU shown in fig. 9 is an MCU control circuit 104, the LCD shown in fig. 9 is a display circuit, the alarm shown in fig. 9 is an alarm circuit 105, the clock shown in fig. 9 is a clock circuit, the keyboard shown in fig. 9 is a keyboard control circuit, the network module shown in fig. 9 is a network circuit, the net shown in fig. 9 is a network, and the management platform shown in fig. 9 is the upper computer manager 20.

Specifically, the whole system adopts 5V power supply, and electromagnetic signals detected by the sensor probe are transmitted to the amplifying circuit through the filter network. The filtered and amplified signals enter an analog-to-digital conversion module, and the converted digital signals are sent to the MCU for processing.

In the program design, the obtained data is analyzed and calculated, so that the size of the electromagnetic radiation power density is obtained, the result is displayed on the LCD module, and meanwhile, the data is sent to a back-end management platform through a network module through a network, so that the product is monitored. And alarming the data exceeding the limit value to indicate that the measured power density value exceeds the limit value.

As shown in fig. 10, the method applied to an electromagnetic radiation alarm system includes:

the method comprises the steps of starting, initializing, waiting, carrying out signal acquisition of electromagnetic radiation analog signals, judging whether data corresponding to the acquired electromagnetic radiation analog signals are correct or not, entering the waiting again when the data are incorrect so as to carry out signal acquisition, carrying out amplification processing on the electromagnetic radiation analog signals when the data are correct, then carrying out analog-to-digital conversion to convert the electromagnetic radiation analog signals into electromagnetic radiation digital signals, further carrying out data processing, namely calculating corresponding electromagnetic radiation values according to the electromagnetic radiation digital signals, sending the data to an upper computer manager 20 through a network module, and simultaneously displaying the electromagnetic radiation values through a display circuit.

The software of the hardware part of the device adopts a modularized design idea, so that the whole program is easy to maintain and transplant. The system program mainly realizes the functions of data acquisition, processing, display and the like, the acquisition, analog-to-digital conversion and processing of data in the main program are important parts of the device, and the device is also responsible for scheduling each application program module of the system and exchanging data information with system equipment and a management platform, thereby realizing the overall management of system software and hardware resources.

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of program modules is illustrated, and in practical applications, the above-described distribution of functions may be performed by different program modules, that is, the internal structure of the apparatus may be divided into different program units or modules to perform all or part of the above-described functions. Each program module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one processing unit, and the integrated unit may be implemented in a form of hardware, or may be implemented in a form of software program unit. In addition, the specific names of the program modules are only used for distinguishing the program modules from one another, and are not used for limiting the protection scope of the application.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or recited in detail in a certain embodiment.

Those of ordinary skill in the art will appreciate that the elements of the examples described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus/system may be implemented in other ways. The above-described embodiments are merely illustrative, and the division of the modules or units is merely illustrative, and the actual implementation may have another division, and a plurality of units or components may be combined or integrated into another system, or some features may be omitted or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network circuits. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An electromagnetic radiation warning device, comprising:

the sensor circuit is used for acquiring an electromagnetic analog signal of the equipment to be detected;

the filtering and amplifying circuit is connected with the sensor circuit and is used for filtering and amplifying the electromagnetic analog signal;

the analog-to-digital conversion circuit is connected with the filtering amplification circuit and is used for converting the electromagnetic analog signals output by the filtering amplification circuit into electromagnetic digital signals;

the MCU control circuit is connected with the analog-to-digital conversion circuit and used for calculating the electromagnetic radiation value of the equipment to be detected according to the electromagnetic digital signal;

2. The electromagnetic radiation warning device of claim 1, wherein the sensor circuit comprises an EP-105 sensor probe, a signal output of the sensor probe being connected to a signal input of the filtering and amplifying circuit.

3. The electromagnetic radiation alarm device of claim 2, wherein the filter and amplifier circuit comprises:

the active filter sub-circuit is connected with the signal output end of the sensor circuit through the signal input end of the filter sub-circuit and is used for receiving the electromagnetic analog signal and filtering the electromagnetic analog signal;

4. The electromagnetic radiation warning device of claim 3, wherein the active filtering sub-circuit comprises:

the circuit comprises a diode, a first capacitor, a first resistor, a second capacitor, a third resistor, a third capacitor, a fourth resistor, a fifth resistor and an amplifier;

a first end of the diode is used as a signal input end of the active filter sub-circuit and is connected with a signal output end of the sensor circuit, a second end of the diode is grounded through the first capacitor and the first resistor, the second end of the diode is also connected with a first end of the second resistor, and the second resistor is grounded through the second capacitor;

5. The electromagnetic radiation warning device of claim 4, wherein the amplification sub-circuit comprises: a first operational amplifier and a second operational amplifier;

the non-inverting input end of the first operational amplifier is connected with the signal output end of the active filter sub-circuit, the first mismatch adjusting end of the first operational amplifier is connected with the second mismatch adjusting end through a seventh resistor, the inverting input end of the first operational amplifier is grounded, the enabling end of the first operational amplifier is connected with an external potentiometer, the voltage reference end of the first operational amplifier is connected with an external reference voltage, and the output end of the first operational amplifier is connected with the inverting input end of the second operational amplifier through an eighth resistor and used for performing primary amplification processing on the electromagnetic analog signal;

6. An electromagnetic radiation alarm device according to any one of claims 3 to 5 wherein the analogue to digital conversion circuitry includes: an A/D converter;

the first end of the A/D converter is used as the signal input end of the analog-to-digital conversion circuit and connected with the signal output end of the amplification sub-circuit, and is used for receiving the amplified electromagnetic analog signal;

the A/D converter is used for converting the electromagnetic analog signal into an electromagnetic digital signal;

7. The electromagnetic radiation alarm device of claim 1, wherein the MCU control circuit comprises:

8. The electromagnetic radiation alarm device of claim 7, wherein the MCU control circuit further comprises:

9. An electromagnetic radiation alarm system, which is characterized by comprising the electromagnetic radiation alarm device of claims 1-8 and an upper computer manager;