CN110946572B - Wireless Electrocardiogram (ECG) acquisition monitoring device - Google Patents
Wireless Electrocardiogram (ECG) acquisition monitoring device Download PDFInfo
- Publication number
- CN110946572B CN110946572B CN201911311087.3A CN201911311087A CN110946572B CN 110946572 B CN110946572 B CN 110946572B CN 201911311087 A CN201911311087 A CN 201911311087A CN 110946572 B CN110946572 B CN 110946572B
- Authority
- CN
- China
- Prior art keywords
- operational amplifier
- resistor
- diode
- signals
- ecg
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/30—Input circuits therefor
- A61B5/301—Input circuits therefor providing electrical separation, e.g. by using isolating transformers or optocouplers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/30—Input circuits therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Cardiology (AREA)
- Power Engineering (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
Abstract
The invention discloses a wireless Electrocardiogram (ECG) acquisition monitoring device, which comprises a waveform detection module, a rectification comparison module and a filtering emission module, wherein the waveform detection module is used for acquiring the signal waveform of a signal acquisition end in the wireless Electrocardiogram (ECG) acquisition monitoring device during working, a triode Q1 is used for detecting the potential difference of output signals of an operational amplifier AR4 and an operational amplifier AR2, the operational amplifier AR5 is used for comparing the signals and finely adjusting the output signals of the operational amplifier AR3, the triode Q2 and the operational amplifier AR6 are further used for comparing and adjusting the output signals of the rectification comparison module, finally, the filtering emission module uses a filtering circuit consisting of an inductor L1, a capacitor C2 and a capacitor C3 to filter the signals and sends the signals to a wireless electrocardiogram monitoring terminal through a signal transmitter E1, the signal waveform of the signal acquisition end in the wireless Electrocardiogram (ECG) acquisition monitoring device during working can be monitored, and the electrocardiosignals collected by the monitoring terminal can be processed and analyzed in time, and the repeated detection phenomenon is avoided.
Description
Technical Field
The invention relates to the technical field of signal transmission, in particular to a wireless Electrocardiogram (ECG) acquisition monitoring device.
Background
At present, a radio Electrocardiogram (ECG) is an important device for monitoring dynamic electrocardio of a human body, however, in practice, in the process of patient measurement, the situation of repeated detection of the ECG often appears, especially an old ECG machine is still used in hospitals in many counties, and the probability of repeated detection is higher due to unclear ECG, so that the psychological health of a patient is seriously influenced.
Disclosure of Invention
In view of the above situation, and in order to overcome the defects of the prior art, the present invention aims to provide a wireless Electrocardiogram (ECG) acquisition monitoring device, which can monitor the signal waveform of a signal acquisition end during operation in the wireless ECG (ECG) acquisition monitoring device, so that a monitoring terminal can process and analyze the acquired ECG signals in time, and the repeated detection phenomenon is avoided.
The technical scheme includes that the wireless Electrocardiogram (ECG) acquisition monitoring device comprises a waveform detection module, a rectification comparison module and a filtering emission module, wherein the waveform detection module acquires signal waveforms of a signal acquisition end during working in the wireless Electrocardiogram (ECG) acquisition monitoring device, the rectification comparison module utilizes an operational amplifier AR1 and a diode D4 to form a rectification circuit to rectify the signals, a peak value detection circuit is formed by an operational amplifier AR2, an operational amplifier AR3, a diode D5 and a diode D6 to screen out peak values of the signal waveforms, the operational amplifier AR4 is utilized to synchronize signals of an operational amplifier AR2 non-inverting input end, a triode Q1 is utilized to detect signal potential differences output by the operational amplifier AR4 and the operational amplifier AR2, the operational amplifier AR5 is utilized to compare the signals to finely adjust the signals output by the operational amplifier AR3, the triode Q2 and the operational amplifier AR6 are further utilized to compare and adjust the signals output by the rectification comparison module, and finally, the filtering and transmitting module forms a filtering circuit by using an inductor L1, a capacitor C2 and a capacitor C3 to filter signals, and the signals are transmitted to the wireless electrocardiogram monitoring terminal through a signal transmitter E1.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages;
1. the application fortune puts ware AR2, fortune ware AR3 and diode D5, the peak value of signal waveform is selected to diode D6 constitution peak detection circuit, low level signal in the filtering signal, guarantee the stability of signal, the synchronous fortune ware AR2 inphase input end signal of fortune ware AR4 of application fortune simultaneously, and application triode Q1 detects fortune ware AR4, fortune ware AR2 output signal potential difference, compare the signal through fortune ware AR5 and finely tune fortune ware AR3 output signal, have very big practicality.
2. The triode Q1 is used for detecting abnormal signals, when the signals are abnormal, the triode Q1 is conducted, the operational amplifier AR5 plays a role of a comparator at the moment, the output signal potential of the operational amplifier AR3 is reduced, in order to guarantee the accuracy of the signals, the triode Q2 is further used on the same principle, the operational amplifier AR6 compares and adjusts the output signals of the rectification comparison module, the output signals of the rectification comparison module are correct signals with abnormal waveforms, when the signals are abnormal, the operational amplifier AR6 outputs high-level signals at the moment, on the contrary, the signals are low-level signals, the signals are sent into the wireless electrocardiogram monitoring terminal through the signal transmitter E1, the wireless electrocardiogram monitoring terminal is convenient to adjust the electrocardiogram detection condition in time, repeated detection on patients is avoided, and the abnormal signals can be discarded in time.
Drawings
Fig. 1 is a block diagram of a waveform detection module of a wireless Electrocardiogram (ECG) acquisition monitoring device according to the present invention.
Fig. 2 is a block diagram of a rectification comparison module of the wireless Electrocardiogram (ECG) acquisition monitoring device of the present invention.
Fig. 3 is a block diagram of a filtering transmission module of the wireless Electrocardiogram (ECG) acquisition monitoring device of the present invention.
Detailed Description
The foregoing and other aspects, features and advantages of the invention will be apparent from the following more particular description of embodiments of the invention, as illustrated in the accompanying drawings in which reference is made to figures 1 to 3. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
In the first embodiment, the wireless Electrocardiogram (ECG) collecting and monitoring device comprises a waveform detecting module, a rectifying and comparing module and a filtering and transmitting module, wherein the waveform detecting module collects a signal waveform of a signal collecting end during operation in the wireless Electrocardiogram (ECG) collecting and monitoring device, the rectifying and comparing module uses an operational amplifier AR1 and a diode D4 to form a rectifying circuit to rectify the signal, uses an operational amplifier AR2, an operational amplifier AR3, a diode D5 and a diode D6 to form a peak detecting circuit to screen out a peak value of the signal waveform, uses an operational amplifier AR4 to synchronize a signal at a non-inverting input end of the operational amplifier AR2, uses a triode Q1 to detect a potential difference of output signals of the operational amplifier AR4 and the operational amplifier AR2, compares the signal by the operational amplifier AR5 to fine-tune the output signal of the operational amplifier AR3, further uses a triode Q2 and an operational amplifier AR6 to further compare and adjust the output signal of the rectifying and comparing module, finally, the filtering and transmitting module uses an inductor L1, a capacitor C2 and a capacitor C3 to form a filtering circuit to filter signals, and the filtering circuit is sent to the wireless electrocardiogram monitoring terminal through a signal transmitter E1;
the rectification comparison module utilizes an operational amplifier AR1 and a diode D4 to form a rectification circuit to rectify signals and preprocess the signals for the next step of signal regulation, utilizes an operational amplifier AR2, an operational amplifier AR3, a diode D5 and a diode D6 to form a peak value detection circuit to screen out the peak value of signal waveform, filters out low level signals in the signals and ensures the stability of the signals, simultaneously utilizes an operational amplifier AR4 to synchronize the signals of the same-phase input end of the operational amplifier AR2, utilizes a triode Q1 to detect the potential difference of output signals of the operational amplifier AR4 and the operational amplifier AR2, utilizes an operational amplifier AR5 to compare the signals and finely adjust the output signals of the operational amplifier AR3, utilizes a triode Q1 to detect abnormal signals, when the signals are abnormal, the triode Q1 is conducted, the operational amplifier AR5 plays the role of a comparator at the moment to reduce the potential of the output signals of the operational amplifier AR3, and further utilizes a triode Q2 and an operational amplifier AR6 to compare and regulate the output signals of the rectification comparison module to ensure the accuracy of the signals, the rectification comparison module is ensured to output a correct signal with abnormal waveform, when the signal is abnormal, the operational amplifier AR6 outputs a high-level signal, otherwise, the signal is a low-level signal, and the wireless electrocardiogram monitoring terminal is convenient to adjust the electrocardiogram detection condition in time;
the rectification comparison module has a specific structure that a non-inverting input end of an operational amplifier AR1 is connected with one end of a resistor R2, one end of a resistor R3 and a cathode of a diode D4, an inverting input end of an operational amplifier AR1 is connected with one end of a resistor R1, the other end of the resistor R1 is grounded, an output end of the operational amplifier AR1 is connected with the non-inverting input end of the operational amplifier AR1, the anode of the operational amplifier AR1 and the anode of the diode D1, the other end of the resistor R1 are connected with the ground, an output end of the operational amplifier AR1 is connected with the cathode of the diode D1, the anode of the diode D1 and the base of a triode Q1, the cathode of the diode D1 is connected with the non-inverting input end of the operational amplifier AR1 and one end of the resistor R1, one end of the resistor R1 and the collector of the triode R1 are connected with the collector of the triode Q1, the other end of the resistor R6 is grounded, the output end of the operational amplifier AR3 is connected with the base of the triode Q2 and the non-inverting input end of the operational amplifier AR5, the inverting input end of the operational amplifier AR5 is connected with the emitter of the triode Q1, the collector of the triode Q1 is connected with the output end of the operational amplifier AR4 and one end of the resistor R8, and the other end of the resistor R8 is connected with the inverting input end of the operational amplifier AR 4.
On the basis of the scheme, the filtering and transmitting module utilizes a filtering circuit consisting of an inductor L1, a capacitor C2 and a capacitor C3 to filter signals, and the signals are transmitted into the wireless electrocardiogram monitoring terminal through a signal transmitter E1, so that the wireless electrocardiogram monitoring terminal can conveniently adjust electrocardiogram detection conditions in time, repeated detection on patients is avoided, abnormal signals can be discarded in time, one end of the inductor L1 is connected with one end of a resistor R9, one end of a capacitor C3 and the output end of an operational amplifier AR6, the other end of the inductor L1 is connected with one end of a resistor R10 and one end of the capacitor C2, the other ends of the resistor R9, the capacitor C2 and the capacitor C3 are grounded, and the other end of the resistor R10 is connected with the signal transmitter E1;
the waveform detection module selects a wave detector J1 with the model number of AD 8313 to collect signal waveforms of a signal collection end during working in a wireless Electrocardiogram (ECG) collection monitoring device, a power supply end of the wave detector J1 is connected with +5V, a grounding end of the wave detector J1 is grounded, an output end of the wave detector J1 is connected with a cathode of a diode D1 and an anode of a diode D2, an anode of the diode D1 is connected with a cathode of the diode D2, a cathode of a voltage stabilizing tube D3 and the other end of a resistor R2, and an anode of the voltage stabilizing tube D3 is grounded.
When the wireless Electrocardiogram (ECG) acquisition monitoring device is used in particular, the wireless Electrocardiogram (ECG) acquisition monitoring device comprises a waveform detection module, a rectification comparison module and a filtering emission module, wherein the waveform detection module acquires signal waveforms of a signal acquisition end in the working process of the wireless Electrocardiogram (ECG) acquisition monitoring device, the rectification comparison module utilizes a rectification circuit formed by an operational amplifier AR1 and a diode D4 to rectify the signals, preprocesses the next step of signal adjustment, utilizes a peak detection circuit formed by an operational amplifier AR2, an operational amplifier AR3, a diode D5 and a diode D6 to screen out peak values of the signal waveforms, filters low-level signals in the signals, ensures the stability of the signals, simultaneously utilizes an operational amplifier AR4 to synchronize the signals of an in-phase input end of the operational amplifier AR2, utilizes a triode Q1 to detect the potential difference of output signals of the operational amplifier AR4 and the operational amplifier AR2, and utilizes an operational amplifier AR5 to compare the signals and finely adjust the output signals of the operational amplifier AR3, the triode Q1 is used for detecting abnormal signals, when the signals are abnormal, the triode Q1 is conducted, the operational amplifier AR5 plays a role of a comparator at the moment, the potential of the output signals of the operational amplifier AR3 is reduced, in order to guarantee the accuracy of the signals, the triode Q2 and the operational amplifier AR6 are further used for comparing and adjusting the output signals of the rectification comparison module, the output signals of the rectification comparison module are correct signals with abnormal waveforms, when the signals are abnormal, the operational amplifier AR6 outputs high-level signals at the moment, on the contrary, the signals are low-level signals, the electrocardiogram detection condition can be timely adjusted by the wireless electrocardiogram monitoring terminal conveniently, finally, the filtering and transmitting module uses a filtering circuit consisting of an inductor L1, a capacitor C2 and a capacitor C3 to filter the signals, and the signals are transmitted into the wireless electrocardiogram monitoring terminal through the signal transmitter E1.
While the invention has been described in further detail with reference to specific embodiments thereof, it is not intended that the invention be limited to the specific embodiments thereof; for those skilled in the art to which the present invention pertains and related technologies, the extension, operation method and data replacement should fall within the protection scope of the present invention based on the technical solution of the present invention.
Claims (3)
1. A wireless Electrocardiogram (ECG) acquisition monitoring device comprises a waveform detection module, a rectification comparison module and a filtering emission module, and is characterized in that the waveform detection module acquires signal waveforms of a signal acquisition end during working in the wireless Electrocardiogram (ECG) acquisition monitoring device, the rectification comparison module utilizes an operational amplifier AR1 and a diode D4 to form a rectification circuit to rectify the signals, a peak value detection circuit is formed by an operational amplifier AR2, an operational amplifier AR3, a diode D5 and a diode D6 to screen out peak values of the signal waveforms, the operational amplifier AR4 is utilized to synchronize signals of a non-inverting input end of the operational amplifier AR2, a triode Q1 is utilized to detect signal potential differences output by the operational amplifier AR4 and the operational amplifier AR2, the operational amplifier AR5 is utilized to compare signals output by the operational amplifier AR3 for fine adjustment, the output signals of a triode Q2 and the operational amplifier AR6 are further utilized to compare and adjust output signals of a rectification comparison module, finally, the filtering and transmitting module uses an inductor L1, a capacitor C2 and a capacitor C3 to form a filtering circuit to filter signals, and the filtering circuit is sent to the wireless electrocardiogram monitoring terminal through a signal transmitter E1;
the rectifying comparison module comprises an operational amplifier AR1, wherein the non-inverting input end of the operational amplifier AR1 is connected with one end of a resistor R2, one end of a resistor R3 and the cathode of a diode D3, the inverting input end of the operational amplifier AR3 is connected with one end of the resistor R3, the other end of the resistor R3 is grounded, the output end of the operational amplifier AR3 is connected with the non-inverting input end of the operational amplifier AR3, the non-inverting input end of the operational amplifier AR3 and the anode of the diode D3, the other end of the resistor R3 is connected with the anode of the diode D3, one end of a resistor R3, the output end of the operational amplifier AR3 is connected with the cathode of the diode D3, the anode of the diode D3 and the cathode of the transistor Q3, the cathode of the diode D3 is connected with the non-inverting input end of the operational amplifier AR3 and one end of the resistor R3, the collector of the transistor R3 is connected with the other end of the resistor R3 and the transistor Q3, the transistor R3 are connected with the other end of the input end of the transistor R3 of the operational amplifier AR3, and the transistor Q3, the other end of the resistor R6 is grounded, the output end of the operational amplifier AR3 is connected with the base of the triode Q2 and the non-inverting input end of the operational amplifier AR5, the inverting input end of the operational amplifier AR5 is connected with the emitter of the triode Q1, the collector of the triode Q1 is connected with the output end of the operational amplifier AR4 and one end of the resistor R8, and the other end of the resistor R8 is connected with the inverting input end of the operational amplifier AR 4.
2. The device for acquiring and monitoring the wireless Electrocardiogram (ECG) as claimed in claim 1, wherein the filtering and transmitting module comprises an inductor L1, one end of the inductor L1 is connected to a resistor R9, one end of a capacitor C3 and the output end of an operational amplifier AR6, the other end of the inductor L1 is connected to a resistor R10, one end of a capacitor C2, the other ends of the resistor R9, the capacitor C2 and the capacitor C3 are grounded, and the other end of the resistor R10 is connected to a signal transmitter E1.
3. The device for monitoring wireless Electrocardiogram (ECG) acquisition as claimed in claim 2, wherein the waveform detection module comprises a detector J1 with model number AD 8313, the power supply terminal of the detector J1 is connected with +5V, the ground terminal of the detector J1 is connected with ground, the output terminal of the detector J1 is connected with the cathode of a diode D1 and the anode of a diode D2, the anode of a diode D1 is connected with the cathode of a diode D2 and the cathode of a voltage regulator tube D3, the other end of a resistor R2, and the anode of the voltage regulator tube D3 is connected with ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911311087.3A CN110946572B (en) | 2019-12-18 | 2019-12-18 | Wireless Electrocardiogram (ECG) acquisition monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911311087.3A CN110946572B (en) | 2019-12-18 | 2019-12-18 | Wireless Electrocardiogram (ECG) acquisition monitoring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110946572A CN110946572A (en) | 2020-04-03 |
| CN110946572B true CN110946572B (en) | 2022-04-15 |
Family
ID=69982538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911311087.3A Active CN110946572B (en) | 2019-12-18 | 2019-12-18 | Wireless Electrocardiogram (ECG) acquisition monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110946572B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201147314Y (en) * | 2007-10-11 | 2008-11-12 | 复旦大学 | Electrocardiogram R wave fast detecting electric appliance for cardiac defibrillator |
| CN204374272U (en) * | 2014-10-31 | 2015-06-03 | 南京世都科技有限公司 | A kind of mutual inductor mode transformer grounding leakage current wireless monitoring device |
| CN209462254U (en) * | 2019-04-30 | 2019-10-01 | 邵阳学院 | A kind of motor control system based on DSP |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6502044B1 (en) * | 1999-07-12 | 2002-12-31 | Acuity Brands Inc. | Self-diagnostic circuitry for emergency lighting fixtures |
| JP5365173B2 (en) * | 2008-02-29 | 2013-12-11 | セイコーエプソン株式会社 | Physical quantity measuring device and electronic device |
| CN106137183A (en) * | 2016-08-01 | 2016-11-23 | 李丽丽 | A kind of cardiac monitoring electric power supply control system based on EGC sensor |
| CN106301025A (en) * | 2016-08-27 | 2017-01-04 | 四川华索自动化信息工程有限公司 | A kind of voltage buffer power supply of anode electrolytic cell current measuring device surging suppression |
| CN206818795U (en) * | 2017-05-18 | 2017-12-29 | 天津市医疗器械研究所 | Electrocardioelectrode AC impedance detects circuit |
| WO2019050651A1 (en) * | 2017-09-08 | 2019-03-14 | Intel Corporation | Low noise front-end for a heart rate monitor using photo-plethysmography |
| CN107733409B (en) * | 2017-10-27 | 2020-11-10 | 南京轨道交通系统工程有限公司 | High-voltage high-power IGBT drive circuit |
| CN109375695B (en) * | 2018-11-29 | 2020-12-08 | 北京网高科技股份有限公司 | Informatization remote monitoring system based on big data |
| CN109391286B (en) * | 2018-11-30 | 2019-12-20 | 平顶山学院 | Bidding purchasing process information management system |
| CN109787565A (en) * | 2019-01-24 | 2019-05-21 | 黄河科技学院 | A kind of multi-action computer data acquisition device |
| CN109938771A (en) * | 2019-03-30 | 2019-06-28 | 河南省省立医院有限公司 | Three-dimensional basin baselap acoustic image processing control system |
| CN110244814B (en) * | 2019-05-14 | 2020-10-02 | 海南豪杰电子有限公司 | Electromechanical low-voltage equipment power compensation circuit |
| CN110057986B (en) * | 2019-06-12 | 2020-01-21 | 郑州工程技术学院 | Atmospheric environment monitoring system based on big data |
| CN110269636A (en) * | 2019-07-22 | 2019-09-24 | 河南省中医院（河南中医药大学第二附属医院） | Stereoscopic imaging examination device for radiology department |
| CN110324017A (en) * | 2019-08-15 | 2019-10-11 | 河南省中医院（河南中医药大学第二附属医院） | Effective atomizing inhalation device is reminded to internal medicine nursing intelligence |
| CN110554289B (en) * | 2019-10-14 | 2021-06-08 | 河南理工大学 | Low-voltage series fault arc detection system |
| CN110533966B (en) * | 2019-10-14 | 2021-03-19 | 郑州铁路职业技术学院 | Foreign language spoken language correction system |
-
2019
- 2019-12-18 CN CN201911311087.3A patent/CN110946572B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201147314Y (en) * | 2007-10-11 | 2008-11-12 | 复旦大学 | Electrocardiogram R wave fast detecting electric appliance for cardiac defibrillator |
| CN204374272U (en) * | 2014-10-31 | 2015-06-03 | 南京世都科技有限公司 | A kind of mutual inductor mode transformer grounding leakage current wireless monitoring device |
| CN209462254U (en) * | 2019-04-30 | 2019-10-01 | 邵阳学院 | A kind of motor control system based on DSP |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110946572A (en) | 2020-04-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112506113B (en) | Smart city electric power big data information acquisition system | |
| CN108269393B (en) | Signal calibration circuit of medical remote monitoring system | |
| CN110138410B (en) | Tourism safety intelligent management system | |
| CN111384781B (en) | 5G communication base station electric power operation monitoring system | |
| CN110946572B (en) | Wireless Electrocardiogram (ECG) acquisition monitoring device | |
| CN111697929A (en) | Rail transit internet of things node control system | |
| CN111585541B (en) | Building construction remote monitoring system based on thing networking | |
| CN109512400A (en) | A kind of monitoring arrangement of Real-time Feedback special operating personnel body index | |
| CN111082818A (en) | Internet carrier signal regulating circuit | |
| CN111948580B (en) | High-speed rail power socket monitoring system based on Internet of things | |
| CN214882303U (en) | Automatic drying device weaves | |
| CN209879334U (en) | Computer analog signal calibration system | |
| CN210691090U (en) | Greenhouse monitoring system | |
| CN209787185U (en) | Communication safety monitoring system | |
| CN111506481A (en) | Power supply loop monitoring system | |
| CN211149232U (en) | Engineering structure health monitoring data acquisition and processing system | |
| CN112003568A (en) | Intelligent nursing system for reproductive center | |
| CN219322384U (en) | Production data management platform data signal transmission system | |
| CN209928601U (en) | Wireless communication alarm circuit | |
| CN111624446A (en) | Passive earth electric wave sensor based on radio frequency energy collection | |
| CN108183727B (en) | Electricity consumption information interference signal filtering device, electricity consumption information acquisition system and method | |
| CN210071332U (en) | Wind turbine generator system bearing diagnostic device | |
| CN214540563U (en) | Press roll type deburring boosting machine power compensation device for cap | |
| CN216014076U (en) | Air cooling control system for aluminum processing | |
| CN112022203A (en) | Medical ultrasonic diagnostic instrument detection equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Duan Inventor after: Sun Tingting Inventor after: Xu Sheng Inventor after: Yao Ni Inventor after: Xu Hong Inventor after: Shi Wenjuan Inventor after: Wan Hanwen Inventor after: Xu Jiahuan Inventor before: Li Duan Inventor before: Yao Ni Inventor before: Xu Sheng Inventor before: Shi Wenjuan Inventor before: Xu Hong Inventor before: Wan Hanwen Inventor before: Xu Jiahuan |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |