CN214622829U - Ground resistance testing arrangement with real-time long-range video monitoring function - Google Patents
Ground resistance testing arrangement with real-time long-range video monitoring function Download PDFInfo
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- CN214622829U CN214622829U CN202120780769.5U CN202120780769U CN214622829U CN 214622829 U CN214622829 U CN 214622829U CN 202120780769 U CN202120780769 U CN 202120780769U CN 214622829 U CN214622829 U CN 214622829U
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Abstract
The utility model discloses a ground resistance testing device with real-time remote video monitoring function, which relates to the field of ground resistance testing, and comprises a ground resistance testing component and a headset component, wherein the ground resistance testing component comprises an ARM chip microprocessor, a frequency generator, a power amplifier, a filter, an analog-to-digital converter and an LCD display screen; the headset assembly comprises a voice communication assembly and a video monitoring assembly, and the video monitoring assembly transmits videos collected on site to the cloud platform in real time through the 5G communication module. The device can change the tradition and look over the supervision mode of characters material, has whole to grasp lightning protection device detection data traceability, detection quality etc. and then reaches the purpose of reduction detection scene, in lightning protection device testing process, realizes the supervision of lightning protection device field test quality.
Description
Technical Field
The utility model relates to an earth resistance test field, concretely relates to earth resistance testing arrangement with real-time remote video monitoring function.
Background
According to the requirement of the reform of the national release administration, the post-incident supervision is required to be enhanced while the release is carried out. In the field of lightning protection safety supervision, the qualification of lightning protection device detection is the main grip, but what is the quality of the lightning protection device detection site? Is there an over-qualification test present? However, in the face of a plurality of lightning protection device detection mechanisms, supervision departments are also tedious, and in the process of implementing lightning protection safety supervision, defects exist only according to the lightning protection detection reports, original records and other text data, so that the objective tracing of the field detection quality and detection data of the lightning protection device cannot be achieved.
In order to change the traditional supervision mode for checking the text materials, a grounding resistance testing device with a real-time remote video monitoring function is introduced in the detection process of the lightning protection device, so that the supervision of the field detection quality of the lightning protection device is realized.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a ground resistance testing arrangement with real-time long-range video monitoring function has whole to grasp lightning protection device detected data traceability, detection quality etc. and then reaches the purpose of reduction detection scene, can also judge whether there is the condition that surpasses the qualification detection according to the detection site conditions, has solved the long-term "black box" problem that lightning protection supervision link exists.
A ground resistance testing device with a real-time remote video monitoring function comprises a ground resistance testing component and a headset component, wherein the ground resistance testing component comprises an ARM chip microprocessor, a frequency generator, a power amplifier, a filter, an analog-to-digital converter and an LCD display screen, the frequency generator is connected with the ARM chip microprocessor, the power amplifier is connected with the frequency generator, the filter is connected with the power amplifier, the analog-to-digital converter is connected with the filter, the analog-to-digital converter is also connected with the ARM chip microprocessor, and the LCD display screen is connected with the ARM chip microprocessor and used for displaying ground resistance testing data; the headset assembly includes a voice communication assembly and a video monitoring assembly.
The video monitoring assembly comprises two cameras, a metal support, a 5G communication module, a data storage and a cloud platform, wherein the cameras are connected with the headset shell through the metal support, the 5G communication module is connected with the cloud platform in a wireless mode, and the 5G communication module is further connected with the data storage in a wired mode;
the voice communication assembly comprises a DSP chip, an audio coding and decoding chip, a wireless transceiving chip and an external circuit which are connected with each other, wherein the audio coding and decoding chip is further connected with an earphone microphone and an earphone loudspeaker, and the wireless transceiving chip is further connected with a pull rod antenna.
Preferably, one of the two headset cameras faces the ground resistance testing component LCD screen and is used for monitoring ground resistance testing data, and the other of the two headset cameras is used for monitoring real-time operation of a lightning protection detection site. The two cameras are connected with the cloud platform in a wireless mode through the 5G communication module, and the 5G communication module is further connected with the data storage in a wired mode.
Preferably, the metal support connected with the camera is a bendable metal support, a power line and a signal line are arranged in the metal support, and the angle of the metal support can be adjusted to achieve the best video acquisition effect.
Preferably, a power module is arranged in the headset shell, and the video monitoring assembly and the voice communication assembly share the power module.
The utility model has the advantages that: the on-site detection of the lightning protection device can realize the real-time viewing of remote videos, change the traditional supervision mode of viewing text materials, and realize the supervision of the on-site detection quality of the lightning protection device in the detection process of the lightning protection device.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a flow chart of the present invention;
FIG. 3 is a schematic diagram of the working structure of the headphone in the device of the present invention;
fig. 4 is a schematic structural diagram of a headset in the device of the present invention;
FIG. 5 is a schematic diagram of the ground resistance test in the device of the present invention;
201, a first headset, 202, a first camera, 203, a first microphone, 204, a ground resistance testing component LCD display screen, 205, a data memory, 206, a 5G communication module, 207, a cloud platform, 208, a second headset, 209, a second camera, 210, a second microphone, 211, a metal support, 212, an earphone speaker, 213 and a pull rod antenna.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
As shown in fig. 1 to 5, a ground resistance testing device with a real-time remote video monitoring function includes a ground resistance testing component and a headphone component, where the ground resistance testing component includes an ARM chip microprocessor, a frequency generator, a power amplifier, a filter, an analog-to-digital converter and an LCD display screen, the frequency generator is connected with the ARM chip microprocessor, the power amplifier is connected with the frequency generator, the filter is connected with the power amplifier, the analog-to-digital converter is connected with the filter, the analog-to-digital converter is further connected with the ARM chip microprocessor, and the LCD display screen is connected with the ARM chip microprocessor and is used for displaying ground resistance testing data; the headset assembly includes a voice communication assembly and a video monitoring assembly.
The video monitoring component is packaged in two headsets (a first headset 201 and a second headset 208), and comprises two cameras (a first camera 202 and a second camera 209), a 5G communication module 206 and a data storage 205, wherein the 5G communication module 206 is connected with the cloud platform 207 in a wireless mode, and the 5G communication module 206 is further connected with the data storage 205 in a wired mode;
in the two headset cameras, a first camera 202 faces an LCD screen 204 of a ground resistance testing component and is used for monitoring ground resistance testing data, and a second camera 209 is used for monitoring real-time operation of a lightning protection detection field. The angle of the metal bracket 211 connected with the camera can be adjusted to achieve the best video acquisition effect.
The voice communication assembly is respectively packaged in two head earphones (a first head earphone 201 and a second head earphone 208), and comprises a DSP chip, an audio coding and decoding chip, a wireless receiving and sending chip and an external circuit which are connected with each other, wherein the audio coding and decoding chip is further connected with a first earphone microphone 203 (a second microphone 210) and an earphone loudspeaker 212, and the wireless receiving and sending chip is further connected with a pull rod antenna 213.
The DSP chip of the voice communication component adopts TMS320C6678, the audio coding decoding chip adopts TLV320AIC3101IRHBR, and the wireless transceiver chip nRF 903.
The specific implementation mode and principle are as follows:
the ARM chip microprocessor is a main control chip which takes STM32F767ZIT6 with Cortex-M7 as an inner core as a grounding resistance testing module, is a low-power consumption and high-performance processor based on an ARM Cortex M7 inner core, is provided with an on-chip Static Random Access Memory (SRAM) with 512kB, has the highest operating frequency of 216MHz and rich peripheral interfaces, can communicate with peripheral equipment through simple circuit connection, and is internally provided with a double-precision hardware floating point unit (DFFPU).
The high-speed timing unit of the ARM Cortex-M7 processor automatically adjusts the output frequency to generate sine waves with various frequencies such as 93Hz, 101Hz, 111Hz, 123Hz and the like, detects the noise in a test loop under the specific frequency, performs DFT operation through a filter and a DSC unit in the ARM Cortex-M7 processor to determine the noise frequency and noise decibel, and selects the frequency for different frequency measurement as a basis to effectively avoid the maximum interference frequency in the ground, thereby improving the measurement precision. The excitation source output frequency is then determined by an ARM Cortex-M7 processor by comparison selection. The grounding resistance test module starts to collect voltage signals and current signals of the lightning protection grounding device, effective signals are extracted through filtering, the fact that the current in a circuit is very small is considered, the signals need to be amplified through an amplifier, then the signals are sampled through A/D conversion, a comparator and finally calculated through a microprocessor, the grounding resistance value of the lightning protection device can be obtained, and the grounding resistance value is displayed on an LCD display screen.
Specifically, as shown in fig. 5, a 0.618 test principle is adopted, where G is a ground test point of the lightning protection device, P is a voltage electrode, and C is a current electrode. The grounding body G is taken as a reference point, a voltage pole P and a current pole C are sequentially arranged from near to far, the length of GP is 0.618 of the length of the whole GC, and the test method is 0.618 method or a compensation method. The collected voltage signal is U, the current signal is I, and then the ground resistance test result R is U/I. Meanwhile, the grounding resistance of the voltage auxiliary electrode P is added into the potential difference measuring circuit, so that the voltage auxiliary electrode P can be used as a voltage measuring device, the internal resistance of the voltage acquisition circuit is increased as much as possible, and the influence of the grounding resistance of the voltage electrode P can be reduced.
The field staff communicates and communicates through the voice communication assembly, voice digital signals collected by the voice communication assembly in the first headphone 201 are sent to the voice communication assembly in the second headphone 208 through the wireless transceiver chip nRF903, the voice signals are decompressed through the DSP chip TMS320C6678 and the voice compression decoding, the decompressed digital signals are converted into analog signals through the audio encoding decoding chip TLV320AIC3101IRHBR, and the analog signals are played through the earphone loudspeaker 212 and then heard by the ears of people. In the process of testing the grounding resistance, the staff can talk with each other through the voice communication components in the first headset 201 and the second headset 208.
The first headset 201 and the second headset 208 are respectively connected with a first camera 202 and a second camera 209, the first camera 202 is used for monitoring test data of an LCD display screen 204 of the ground resistance test assembly, the cameras are relatively fixed, a person operating the ground resistance test assembly wears the cameras on a lightning protection detection site, and the direction of the cameras is adjusted by adjusting a metal bracket 211 of the cameras; the camera 209 of the second headphone 208 is used for monitoring the real-time operation of the lightning protection detection site, and when the second headphone is worn on the head of a lightning protection detection worker, the direction of the camera can be adjusted by adjusting the metal support 211, so that the best video acquisition effect is achieved.
The video signals collected by the first camera 202 and the second camera 209 are transmitted to the cloud platform 207 through the 5G communication module 206 so that lightning protection safety supervision personnel can watch the video signals in real time or play the video signals back as required, and visualization and transparence of lightning protection safety supervision are achieved. Considering that the video uploading may fail due to weak or no signal of 5G signals in some areas, data memories 205 are disposed in the first headset 201 and the second headset 208, when there is no signal, the acquired video information is first stored in the data memory 205, and when the signal is enhanced, the video information is uploaded to the "cloud platform" 207.
Based on the above, the utility model discloses changed the tradition and looked over the supervision mode of characters material, detected data to the lightning protection device and traced to source, detection quality etc. and have whole mastery, and then reach the purpose that the reduction detected the scene, in the lightning protection device testing process, realize the supervision of lightning protection device witnessed inspections quality.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.
Claims (4)
1. The ground resistance testing device with the real-time remote video monitoring function is characterized by comprising a ground resistance testing component and a headset component, wherein the ground resistance testing component comprises an ARM chip microprocessor, a frequency generator, a power amplifier, a filter, an analog-to-digital converter and an LCD display screen, the frequency generator is connected with the ARM chip microprocessor, the power amplifier is connected with the frequency generator, the filter is connected with the power amplifier, the analog-to-digital converter is connected with the filter, the analog-to-digital converter is further connected with the ARM chip microprocessor, and the LCD display screen is connected with the ARM chip microprocessor and used for displaying ground resistance testing data; the headset assembly comprises a voice communication assembly and a video monitoring assembly;
the video monitoring assembly comprises a camera, a metal support, a 5G communication module, a data storage and a cloud platform, wherein the camera is connected with the headset shell through the metal support, the 5G communication module is connected with the cloud platform in a wireless mode, and the 5G communication module is further connected with the data storage in a wired mode;
the voice communication assembly comprises a DSP chip, an audio coding and decoding chip, a wireless transceiving chip and an external circuit which are connected with each other, wherein the audio coding and decoding chip is further connected with an earphone microphone and an earphone loudspeaker, and the wireless transceiving chip is further connected with a pull rod antenna.
2. The grounding resistance testing device with the real-time remote video monitoring function according to claim 1, characterized in that: a power module is arranged in the headset shell, and the video monitoring assembly and the voice communication assembly share the power module.
3. The grounding resistance testing device with the real-time remote video monitoring function according to claim 1, characterized in that: the metal support of the camera of the video monitoring assembly is a bendable metal support, a power line and a signal line are arranged in the metal support, and the angle of the metal support can be adjusted.
4. The grounding resistance testing device with the real-time remote video monitoring function according to claim 1, characterized in that: the model of the DSP chip of the voice communication assembly adopts TMS320C6678, the model of the audio coding decoding chip adopts TLV320AIC3101IRHBR, and the model of the wireless transceiver chip adopts nRF 903.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113219253A (en) * | 2021-04-16 | 2021-08-06 | 湖北省防雷中心 | Ground resistance testing arrangement with real-time long-range video monitoring function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113219253A (en) * | 2021-04-16 | 2021-08-06 | 湖北省防雷中心 | Ground resistance testing arrangement with real-time long-range video monitoring function |
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