CN101498751B - Wrist wearing type digital electric field detection meter - Google Patents

Wrist wearing type digital electric field detection meter Download PDF

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Publication number
CN101498751B
CN101498751B CN2009100580256A CN200910058025A CN101498751B CN 101498751 B CN101498751 B CN 101498751B CN 2009100580256 A CN2009100580256 A CN 2009100580256A CN 200910058025 A CN200910058025 A CN 200910058025A CN 101498751 B CN101498751 B CN 101498751B
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China
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electric field
meter
watchcase
testing circuit
circuit plate
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Expired - Fee Related
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CN2009100580256A
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CN101498751A (en
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李戈
李弋
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Individual
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Individual
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Abstract

The invention discloses a wrist-wearing type digital electric field detecting meter which comprises a meter band, a meter shell and a meter core arranged in the meter shell. The wrist-wearing type digital electric field detecting meter is characterized in that the meter core comprises a liquid crystal display screen, a detecting circuit board, a battery block, an annular antenna, an upper rubber jacket and a lower rubber jacket, wherein the liquid crystal display screen, the upper rubber jacket, the detecting circuit board and the lower rubber jacket are sequentially stacked together and fixed into an integral structure through meter core connecting screws, and the annular antenna encircles round the integral structure; and the detecting circuit board comprises an amplifier, an AD converter, a microprocessor, a buzzer and an LED lamp. The wrist-wearing type digital electric field detecting meter takes quantitative detection as the basic point of departure and a processor as a core, realizes the accurate and reliable power-frequency electrical field strength detection, can assist a user to accurately know the electrification condition of equipment in a high-voltage environment so as to improve the security, can achieve the quantitative display of the electric field information, is favorable for the user to accurately know the electrification distribution condition of the equipment and has the advantages of high reliability, various output measures, and the like.

Description

Wrist wearing type digital electric field detection meter
Technical field
The present invention relates to the detection technique field, be specifically related to a kind ofly to be worn on the human body wrist, be used for digital electric field detection meter that atmosphere mesohigh electric field intensity is carried out detection by quantitative, warning.
Background technology
In the high-voltage electrical apparatus operation, often because of mistake is judged as no electric object with charged object the casualty accident of getting an electric shock appears.Owing to high voltage alive equipment such as high-tension bus-bar, switch cubicle, transformer terminal etc. are not easy to carry out contact measurement, therefore can reach the purpose that reduces the false touch accident by to the whether charged situation of the indirect judgment device of the detection of high-voltage electric field.
The method that is used for Wrist wearing type electric field detection alarm device (having another name called watch style alarming in short range of electric power device) at present mainly contains two kinds: a kind of is the fet gate inductive method, and another kind is to adopt special-purpose alarm chip.
One, fet gate inductive method
This method has been utilized the control characteristic of fet gate, as shown in Figure 1, antenna is made of metallic conductor, and the electric field signal of sensing is input to fet gate, because field effect transistor is the voltage-to-current control device, the induced voltage on the grid has just determined the on off operating mode of field effect transistor.After this voltage surpassed certain value, the on off operating mode of field effect transistor changed, and output level also changes synchronously, through amplifying the rear drive microphone device, reached the purpose of warning.
Two, special-purpose alarm chip
This method is the improvement of fet gate inductive method, as shown in Figure 2, like that with the Wuxi core HL2014 of Microtronic A/S of section integrated circuit is an example: special-purpose alarm chip generally has an input end, can be directly connected to antenna, this input end has the same high resistant characteristic of fet gate, after the induced voltage on this input end surpassed the default thresholding of chip, chip can directly be exported square wave, sine wave or speech waveform to drive the hummer sounding.This method comes down to the integrated of fet gate sensor circuit, simplifies circuit by the form of special chip, improves stability and reliability.
No matter be fet gate inductive method or the special-purpose alarm chip of employing, a default alarm level thresholding is all arranged, when induced voltage surpasses thresholding, the circuit output alarm signal, on the contrary then do not report to the police.Therefore the user obtains the just information of " having " or " nothing " two kinds of qualitative judgements, is the simulation qualitative detection.The simulation qualitative detection exists following defective:
1, the information that provides is limited, is unfavorable for that the user clearly understands charged situation." having or not " charged two kinds of information can only be provided.If reduce alarm threshold for improving the warning security, then can bring wrong report to increase; If the raising alarm threshold has then brought potential safety hazard again.For example: when induced voltage during less than thresholding, even the high-voltage electric field of this moment is stronger, but the user still can draw the judgement of not having electricity, is unfavorable for that the user makes the foresight behavior, influences safety.
2, accuracy and reliability are low.Because intrinsic parameter discrete and the poor anti jamming capability of mimic channel, the accuracy and the reliability that have caused detecting are limited to.
3, frequency selectivity is poor.Though detect to as if frequency be the power frequency electric field signal of 50Hz, owing to the method that has adopted the out-of-limit detection of level, make the undesired signal of other frequencies, all may bring false alarm as pulse signal, electrostatic signal etc.
Summary of the invention
The objective of the invention is at above-mentioned the deficiencies in the prior art, a kind of Wrist wearing type digital electric field detection meter is provided, this electric field table can be realized quantitative measurment electric field intensity value, the user can clearer understanding near the field strength distribution situation, improved user's security effectively; Simultaneously, also have accuracy of measurement height, product reliability height, frequency selectivity is good, output means is various, portably use advantages such as convenient.
For reaching the foregoing invention purpose, the technical scheme that is adopted is: a kind of Wrist wearing type digital electric field detection meter is provided, it is characterized in that: comprise watchcase, watchband and be arranged on the interior watch core of watchcase; Described watchcase is formed by preceding watchcase with the metal back cover that preceding watchcase snaps together; Described watchband is connected with the watchcase two ends respectively, and the other end is movably connected; Described watch core includes LCDs, testing circuit plate, battery block, coil antenna, goes up gum cover and following gum cover; Described LCDs, go up gum cover, testing circuit plate, the gum cover order stack is put together down, by the watch core connecting screw structure that is fixed as one, coil antenna is looped around around it; Described testing circuit plate is arranged between LCDs and the battery block, and with the LCDs keeping parallelism; Described coil antenna is to be looped around watch core metal ring reed all around; Described testing circuit plate comprises amplifier, AD converter, microprocessor, hummer and LED lamp; Described LCDs is embedded in gluing and puts, and is electrically connected with the testing circuit plate; Described gum cover down is provided with the battery case that is used to place battery block.
According to Wrist wearing type digital electric field detection meter provided by the invention, it is characterized in that: the bottom center position of described battery case is provided with and is used for contact flat spring that the testing circuit plate is electrically connected with battery block; The circumference of described testing circuit plate is provided with and regulates the button contact chip that button is complementary.
According to Wrist wearing type digital electric field detection meter provided by the invention, it is characterized in that: the both sides of watchcase are provided with and are used for adjusting button that the electric field table is provided with before described, and the contact flat spring that is provided with on the bottom of regulating button and the coil antenna contacts; Described metal back cover is provided with the battery contact that is electrically connected with battery block; An electrode of described battery block is electrically connected by battery contact and metal back cover; The place, four end angles of described metal back cover respectively is provided with a screw hole, by connecting screw metal back cover and preceding watchcase is linked together.
According to Wrist wearing type digital electric field detection meter provided by the invention, it is characterized in that: the end of described tours antenna is provided with the spacing inserted sheet that is used to be plugged in the antenna slot; Described tours antenna be provided with four with the contact flat spring of regulating the button cooperating; The middle part of described tours antenna is provided with and is used for the spacing draw-in groove that connects with the spacing card convex clip of antenna.
According to Wrist wearing type digital electric field detection meter provided by the invention, it is characterized in that: described AD converter is carried out the signal waveform amplitude with the direct input microprocessor of the field intensity signal that collects and is extracted.
Wrist wearing type digital electric field detection meter provided by the invention is compared with existing electric field intensity measuremenrt instrument, has following characteristics:
A, this invention are basic point of departure with the detection by quantitative, and having adopted with the processor is the digital circuit technique of core, can realize accurate, field intensity detection reliably, can help the user accurately to understand the charged situation of equipment of hyperbaric environment, thereby improve security;
B, quantitatively show electric field information: the field intensity numerical value in can showing from 0.1KV/m to the 99.9KV/m scope helps the charged distribution situation that the user accurately understands equipment;
C, accuracy height: owing to adopt detection by quantitative and digital technology, the accuracy of measurement no longer depends on the physical characteristics of semiconductor devices, and its accuracy of detection can reach 1%;
D, reliability height: processor can carry out analyzing and processing to the result of detection by quantitative, has effectively got rid of various interference, has improved the reliability that detects;
E, output means are various: the result of detection by quantitative is except that can also exporting by the sound and optic signal of different frequency, and be not only " having or not " signal by the liquid crystal display.
Description of drawings
Fig. 1 is the circuit diagram that fet gate inductive method electric field detects;
Fig. 2 adopts special-purpose alarm chip to carry out the circuit diagram that electric field detects;
Fig. 3 is the front elevation of Wrist wearing type digital electric field detection meter;
Fig. 4 is the rear view of Wrist wearing type digital electric field detection meter;
Fig. 5 is the structural representation of the watch core of Wrist wearing type digital electric field detection meter;
Fig. 6 is the front elevation of the LCDs of Wrist wearing type digital electric field detection meter;
Fig. 7 is the structural representation of the tours antenna after launching;
Fig. 8 is the structural representation of the watch core of Wrist wearing type digital electric field detection meter;
Fig. 9 is the workflow diagram of Wrist wearing type digital electric field detection meter;
Figure 10 is the circuit design drawing of the testing circuit plate of Wrist wearing type digital electric field detection meter.
Wherein: 1, watchcase, 101, preceding watchcase, 102, metal back cover, 1021, battery contact, 1022, screw hole, 1023, connecting screw, 103, regulate button, 2, watchband, 3, watch core, 301, LCDs, 302, testing circuit plate, 3021, the button contact chip, 303, battery block, 304, coil antenna, 3041, spacing inserted sheet, 3042, contact flat spring, 3043, spacing draw-in groove, 305, go up gum cover, 3051, antenna slot, 306, following gum cover, 3061, battery case, 3062, the spacing card of antenna is protruding, and 307, the watch core connecting screw.
Embodiment
Below in conjunction with accompanying drawing embodiments of the present invention are further described:
As shown in the figure, a kind of Wrist wearing type digital electric field detection meter is characterized in that: comprise watchcase 1, watchband 2 and be arranged on watch core 3 in the watchcase 1; Described watchcase 1 is formed by preceding watchcase 101 with the metal back cover 102 that preceding watchcase 101 snaps together; Described watchband 2 is connected with watchcase 1 two ends respectively, and the other end is movably connected; Described watch core 3 includes LCDs 301, testing circuit plate 302, battery block 303, coil antenna 304, goes up gum cover 305 and following gum cover 306; Described LCDs 301, go up gum cover 305, testing circuit plate 302, gum cover 306 order stack are put together down, by watch core connecting screw 307 structure that is fixed as one, coil antenna 304 is looped around around it; Described testing circuit plate 302 is arranged between LCDs 301 and the battery block 303, and with LCDs 301 keeping parallelisms; Described coil antenna 304 is for being looped around watch core 3 metal ring reed all around; Described testing circuit plate 302 comprises amplifier, AD converter, microprocessor, hummer and LED lamp; Described LCDs 301 is embedded on the gum cover 305, and is electrically connected with testing circuit plate 302; Described gum cover 306 down is provided with the battery case 3061 that is used to place battery block 303.The bottom center position of described battery case 3061 is provided with and is used for contact flat spring 3042 that testing circuit plate 302 is electrically connected with battery block 306; The circumference of described testing circuit plate 302 is provided with and regulates the button contact chip 3021 that button 103 is complementary.The both sides of watchcase 101 are provided with and are used for adjusting button 103 that the electric field table is provided with before described, and the contact flat spring 3042 of setting contacts on the bottom of regulating button 103 and the coil antenna 304; Described metal back cover 102 is provided with the battery contact 1021 that is electrically connected with battery block 303; An electrode of described battery block 303 is electrically connected by battery contact and metal back cover 102; The place, four end angles of described metal back cover 102 respectively is provided with a screw hole 1022, by connecting screw 1023 metal back cover 102 and preceding watchcase 101 is linked together.
The end of described tours antenna 304 is provided with the spacing inserted sheet 3041 that is used to be plugged in the antenna slot 3051; Described tours antenna 304 be provided with four with the contact flat spring 3042 of regulating button 103 cooperatings; The middle part of described tours antenna 304 is provided with the spacing draw-in groove 3043 that is used for protruding 3062 clampings of the spacing card of antenna.Described AD converter is carried out the signal waveform amplitude with the direct input microprocessor of the field intensity signal that collects and is extracted.
During detection, place environment with being worn on electric field table on user's wrist near high-voltage charged body, to produce voltage signal on the tours antenna 304, this signal carries out AD converter after amplifier amplifies, and the data after AD converter is handled enter microprocessor and carry out the digital signal corresponding processing.Microprocessor carries out extracting its amplitude information behind the digital filtering to signal waveform data.At last, the data conversion after the processing is the field intensity value and shows by LCDs 301 that simultaneously, after the field intensity value was greater than predetermined thresholding, microprocessor control hummer sounding and LED lamp were luminous, in order to the user is warned.
Though in conjunction with the accompanying drawings specific embodiments of the invention have been carried out detailed description; this patent is not limited to above-mentioned embodiment; in the protection domain that claims limited, those skilled in the art do not need various modifications that creative work can make or distortion still in the protection domain of this patent.

Claims (1)

1. Wrist wearing type digital electric field detection meter, comprise watchcase (1), watchband (2) and be arranged on the interior watch core (3) of watchcase (1), described watchcase (1) is formed by preceding watchcase (101) with the metal back cover (102) that preceding watchcase (101) snaps together, described watchband (2) is connected with watchcase (1) two ends respectively, the other end is movably connected, and described watch core (3) includes LCDs (301), testing circuit plate (302), battery block (303), coil antenna (304), goes up gum cover (305) and following gum cover (306); Described LCDs (301), go up gum cover (305), testing circuit plate (302), gum cover (306) order stack is put together down, by watch core connecting screw (307) structure that is fixed as one, coil antenna (304) is looped around around it; Described testing circuit plate (302) is arranged between LCDs (301) and the battery block (303), and with LCDs (301) keeping parallelism; Described testing circuit plate (302) comprises amplifier, AD converter, microprocessor, hummer and LED lamp; Described LCDs (301) is embedded on the gum cover (305), and is electrically connected with testing circuit plate (302); Described gum cover (306) down is provided with the battery case (3061) that is used to place battery block (303); The bottom center position of described battery case (3061) is provided with and is used for contact flat spring (3042) that testing circuit plate (302) is electrically connected with battery block (303); The circumference of described testing circuit plate (302) is provided with and regulates the button contact chip (3021) that button (103) is complementary; The both sides of watchcase (101) are provided with and are used for adjusting button (103) that digital electric field detection meter is provided with before described, and the bottom of regulating button (103) contacts with the contact flat spring (3042) that coil antenna (304) is gone up setting; The place, four end angles of described metal back cover (102) respectively is provided with a screw hole (1022), by connecting screw (1023) metal back cover (102) and preceding watchcase (101) is linked together; Described metal back cover (102) is provided with the battery contact (1021) that is electrically connected with battery block (303); An electrode of described battery block (303) is electrically connected by battery contact and metal back cover (102); It is characterized in that: described coil antenna (304) is for being looped around watch core (3) metal ring reed all around; The end of described tours antenna (304) is provided with the spacing inserted sheet (3041) that is used to be plugged in the antenna slot (3051); The middle part of described tours antenna (304) is provided with the spacing draw-in groove (3043) that is used for the spacing card of antenna protruding (3062) clamping; Described tours antenna (304) be provided with four with the contact flat spring (3042) of regulating button (103) cooperating; Described AD converter is carried out the signal waveform amplitude with the direct input microprocessor of the field intensity signal that collects and is extracted.
CN2009100580256A 2009-01-05 2009-01-05 Wrist wearing type digital electric field detection meter Expired - Fee Related CN101498751B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009100580256A CN101498751B (en) 2009-01-05 2009-01-05 Wrist wearing type digital electric field detection meter

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Application Number Priority Date Filing Date Title
CN2009100580256A CN101498751B (en) 2009-01-05 2009-01-05 Wrist wearing type digital electric field detection meter

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CN101498751A CN101498751A (en) 2009-08-05
CN101498751B true CN101498751B (en) 2011-07-20

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104199273A (en) * 2014-09-17 2014-12-10 宝捷时计电子(深圳)有限公司 Watch without button and handle
CN105573482B (en) * 2014-11-11 2019-05-31 宏碁股份有限公司 Wearable electronic device
CN108896835A (en) * 2018-07-18 2018-11-27 南通市天源安全设备有限公司 Intelligent alarming in short range of electric power device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1065076C (en) * 1995-05-10 2001-04-25 卡西欧计算机公司 Antenna for use with portable radio apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1065076C (en) * 1995-05-10 2001-04-25 卡西欧计算机公司 Antenna for use with portable radio apparatus

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Granted publication date: 20110720

Termination date: 20140105