CN105044444A - High-voltage electric signal detection and alarming circuit and intelligent wristband having same - Google Patents
High-voltage electric signal detection and alarming circuit and intelligent wristband having same Download PDFInfo
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- CN105044444A CN105044444A CN201510459967.0A CN201510459967A CN105044444A CN 105044444 A CN105044444 A CN 105044444A CN 201510459967 A CN201510459967 A CN 201510459967A CN 105044444 A CN105044444 A CN 105044444A
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Abstract
The invention discloses a high-voltage electric signal detection and alarming circuit and an intelligent wristband having the circuit. The high-voltage electric signal detection and alarming circuit comprises an antenna unit used for receiving external voltage signals in a preset detection range, and sending the received external voltage signals to a frequency selection network unit; the frequency selection network unit used for screening out a preset high-voltage signal from the received external voltage signals, and sending the high-voltage signal after being processed to a trigger unit; the trigger unit used for sending a triggering signal to an alarm unit according to the high-voltage signal obtained after being processed; and the alarm unit used for giving an alarm according to the triggering signal. According to the high-voltage electric signal detection and alarming circuit, the frequency selection network screens out the preset high-voltage signal from the received external voltage signals and sends the high-voltage signal after being processed to the trigger unit, and the trigger unit sends the triggering signal to the alarm unit for alarming, thereby not only reducing the design cost, but also improving the anti-interference performance.
Description
Technical field
The present invention relates to electric and electronic technical field, particularly a kind of high-voltage signal detection alarm circuit and there is the Intelligent bracelet of this circuit.
Background technology
Along with development and the renewal of science and technology, the kind of electronic product also gets more and more.Therefore, electrical network and supply socket in daily life, jack is seen everywhere.Just the thing being not intended to get an electric shock can be there is slightly because of carelessness, especially for child, to power supply without any defence.Therefore, in the prior art also for protection against electric shock event, devise the protection against electric shock circuit of diversified high-tension electricity detection alarm to point out Danger Electric shock risk.The high-tension electricity detection alarm circuit of existing protection against electric shock usually adopts central processing unit to control high-tension electricity detection alarm and simulates decision circuitry to realize high-tension electricity detection alarm.
But, design inventor in the process of high-tension electricity detection alarm circuit, find that in prior art, at least there are the following problems:
Adopt the protection against electric shock circuit design cost of central processing unit control high-tension electricity detection alarm circuit higher in prior art, the protection against electric shock circuit design adopting simulation decision circuitry to realize high-tension electricity detection alarm circuit is easily subject to the interference of periphery electromagnetic environment, causes false alarm.
Summary of the invention
In view of the above problems, the present invention is proposed to provide a kind of overcoming the problems referred to above or a kind of high-voltage signal detection alarm circuit solved the problem at least in part and the Intelligent bracelet with this circuit.
According to one aspect of the present invention, the invention provides a kind of high-voltage signal detection alarm circuit, comprising: antenna element, frequency selection network unit, trigger element and alarm unit;
Described antenna element, for receiving the external voltage signal in default sensing range, and sends to described frequency selection network unit by the described external voltage signal received;
Described frequency selection network unit, for filtering out preset high-pressure signal from the described external voltage signal received, and is sent to described trigger element by after described high-voltage signal process;
Described trigger element, for according to high-voltage signal after described process, sends trigger pip to described alarm unit;
Described alarm unit, for according to described trigger pip, initiates to report to the police.
Wherein, described frequency selection network unit comprises: the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the first electric capacity, the second electric capacity, the 3rd electric capacity, the first switching tube and second switch pipe;
The link of antenna element and described second resistance described in described first resistance one termination; The link of the first switching tube grid pin one and described first electric capacity described in described another termination of first resistance;
3rd resistance described in described another termination of second resistance and described second electric capacity link;
Described 3rd resistance other end ground connection;
Second electric capacity, the 3rd electric capacity and described second switch pipe emitter pin 3 link described in described another termination of first electric capacity;
Described 3rd electric capacity other end ground connection;
Described 4th resistance one termination power, the first switching tube drain pin 2 described in described 4th another termination of resistance;
Described first switching tube source electrode pin 3 connects described second switch pipe base stage pin one;
Described second switch pipe collector pin two connects described power supply and described trigger element link.
Wherein, described frequency selection network unit also comprises: regulate slide rheostat;
The link of second switch pipe emitter pin 3 described in termination, described first electric capacity, described second electric capacity and described 3rd electric capacity fixed by described adjustment slide rheostat one, another stiff end ground connection of described adjustment slide rheostat; Described adjustment slide rheostat regulates the link of second switch pipe emitter pin 3, described first electric capacity, described second electric capacity and described 3rd electric capacity described in termination.
Wherein, described trigger element, comprising: the 5th resistance, the 7th resistance, the 8th resistance, the 3rd switching tube and bistable multivibrator;
Power supply described in described 5th resistance one termination, the 3rd switching tube base stage pin one described in described 5th another termination of resistance;
Described 3rd switching tube emitter pin two connects described 8th resistance one end, and described 3rd switching tube collector pin 3 meets described 7th resistance and described bistable multivibrator pin D, described bistable multivibrator pin CP link;
Power supply described in described 8th another termination of resistance;
Described 7th resistance other end ground connection;
Described bistable multivibrator pin Q connects described alarm unit.
Wherein, described alarm unit comprises: the 9th resistance, the 4th switching tube and warning device;
Bistable multivibrator pin Q described in described 9th resistance one termination, the 4th switching tube base stage pin one described in described 9th another termination of resistance;
Described 4th switching tube collector pin two connects described warning device;
Described 4th switching tube emitter pin 3 ground connection.
According to another aspect of the present invention, the invention provides a kind of Intelligent bracelet, comprising: high-voltage signal detection alarm circuit; This circuit comprises: antenna element, frequency selection network unit, trigger element and alarm unit;
Described antenna element, for receiving the external voltage signal in default sensing range, and sends to described frequency selection network unit by the described external voltage signal received;
Described frequency selection network unit, for filtering out preset high-pressure signal from the described external voltage signal received, and is sent to described trigger element by after described high-voltage signal process;
Described trigger element, for according to high-voltage signal after described process, sends trigger pip to described alarm unit;
Described alarm unit, for according to described trigger pip, initiates to report to the police.
Wherein, described frequency selection network unit comprises: the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the first electric capacity, the second electric capacity, the 3rd electric capacity, the first switching tube and second switch pipe;
The link of antenna element and described second resistance described in described first resistance one termination; The link of the first switching tube grid pin one and described first electric capacity described in described another termination of first resistance;
3rd resistance described in described another termination of second resistance and described second electric capacity link;
Described 3rd resistance other end ground connection;
Second electric capacity, the 3rd electric capacity and described second switch pipe emitter pin 3 link described in described another termination of first electric capacity;
Described 3rd electric capacity other end ground connection;
Described 4th resistance one termination power, the first switching tube drain pin 2 described in described 4th another termination of resistance;
Described first switching tube source electrode pin 3 connects described second switch pipe base stage pin one;
Described second switch pipe collector pin two connects described power supply and described trigger element link.
Wherein, described frequency selection network unit also comprises: regulate slide rheostat;
The link of second switch pipe emitter pin 3 described in termination, described first electric capacity, described second electric capacity and described 3rd electric capacity fixed by described adjustment slide rheostat one, another stiff end ground connection of described adjustment slide rheostat; Described adjustment slide rheostat regulates the link of second switch pipe emitter pin 3, described first electric capacity, described second electric capacity and described 3rd electric capacity described in termination.
Wherein, described trigger element, comprising: the 5th resistance, the 7th resistance, the 8th resistance, the 3rd switching tube and bistable multivibrator;
Power supply described in described 5th resistance one termination, the 3rd switching tube base stage pin one described in described 5th another termination of resistance;
Described 3rd switching tube emitter pin two connects described 8th resistance one end, and described 3rd switching tube collector pin 3 meets described 7th resistance and described bistable multivibrator pin D, described bistable multivibrator pin CP link;
Power supply described in described 8th another termination of resistance;
Described 7th resistance other end ground connection;
Described bistable multivibrator pin Q connects described alarm unit.
Wherein, described alarm unit comprises: the 9th resistance, the 4th switching tube and warning device;
Bistable multivibrator pin Q described in described 9th resistance one termination, the 4th switching tube base stage pin one described in described 9th another termination of resistance;
Described 4th switching tube collector pin two connects described warning device;
Described 4th switching tube emitter pin 3 ground connection.
Technical scheme of the present invention filters out preset high-pressure signal by frequency selection network unit from the described external voltage signal received, and be sent to described trigger element by after described high-voltage signal process, send trigger pip by trigger element and report to the police to alarm unit.Wherein, the bistable multivibrator that trigger element of the present invention adopts allows to trigger at pin CP to add input signal in a flash before coming, like this, the time that input end is disturbed shortens greatly, the possibility being disturbed wrong report just greatly reduces, make high-voltage signal detection alarm circuit anti-interference of the present invention stronger, work in actual working environment more stable, reliable; Due to the present invention's employing is devices at full hardware circuit design, and do not use programmable central processing unit to control, therefore cost is lower.
Accompanying drawing explanation
A kind of high-voltage signal detection alarm electrical block diagram that Fig. 1 provides for the embodiment of the present invention;
A kind of high-voltage signal detection alarm circuit diagram that Fig. 2 provides for the embodiment of the present invention;
A kind of Intelligent bracelet structural representation that Fig. 3 provides for the embodiment of the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
As a kind of high-voltage signal detection alarm electrical block diagram that Fig. 1 provides for being depicted as the embodiment of the present invention; This high-voltage signal detection alarm circuit comprises: antenna element 101, frequency selection network unit 102, trigger element 103 and alarm unit 104;
Described antenna element 101, for receiving the external voltage signal in default sensing range, and sends to described frequency selection network unit 102 by the described external voltage signal received;
Described frequency selection network unit 102, for filtering out preset high-pressure signal from the described external voltage signal received, and is sent to described trigger element 103 by after described high-voltage signal process;
Described trigger element 103, for according to high-voltage signal after described process, sends trigger pip to described alarm unit 104;
Described alarm unit 104, for according to described trigger pip, initiates to report to the police.
Based on above embodiment, as shown in Figure 2, be a kind of high-voltage signal detection alarm circuit diagram that the embodiment of the present invention provides; This circuit comprises: antenna element, frequency selection network unit, trigger element and alarm unit; Wherein, described antenna element 101 comprises: antenna ANT, described frequency selection network unit 102 comprises: the first resistance R1, the second resistance R2, the 3rd resistance R3,4th resistance R4, first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, first switching tube Q1, second switch pipe Q2 and adjustment slide rheostat R6; Described trigger element 103, comprising: the 5th resistance R5, the 7th resistance R7, the 8th resistance R8, the 3rd switching tube Q3 and bistable multivibrator (i.e. d type flip flop); Described alarm unit 104 comprises: the 9th resistance R9, the 4th switching tube Q4 and warning device BL;
The link of antenna ANT and described second resistance R2 described in described first resistance R1 mono-termination; The link of the first switching tube Q1 pin one and described first electric capacity C1 described in described first another termination of resistance R1;
3rd resistance R3 described in described second another termination of resistance R2 and described second electric capacity C2 link;
Described 3rd resistance R3 other end ground connection;
Second electric capacity C2, the 3rd electric capacity C3 described in described first another termination of electric capacity C1 and described second switch pipe Q2 pin 3 link;
Described 3rd electric capacity C3 other end ground connection;
Described 4th resistance R4 mono-termination power VCC, the first switching tube Q1 pin two described in described 4th another termination of resistance R4;
Described first switching tube Q1 pin 3 connects described second switch pipe Q2 pin one;
Described second switch pipe Q2 pin two connects described power supply VCC and described 5th resistance R5 link;
Described adjustment slide rheostat R6 mono-fixes the link of second switch pipe Q2 pin 3 described in termination, described first electric capacity C1, described second electric capacity C2 and described 3rd electric capacity C3, described another stiff end ground connection of adjustment slide rheostat R6; Described adjustment slide rheostat R6 regulates the link of second switch pipe Q2 pin 3, described first electric capacity C1, described second electric capacity C2 and described 3rd electric capacity C3 described in termination;
Power supply VCC described in described 5th resistance R5 mono-termination, the 3rd switching tube Q3 pin one described in described 5th another termination of resistance R5;
Described 3rd switching tube Q3 pin two connects described 8th resistance R8 one end, described 3rd switching tube Q3 pin 3 meets described 7th resistance R7 and described bistable multivibrator (i.e. d type flip flop) pin D, described bistable multivibrator (i.e. d type flip flop) pin CP link;
Power supply VCC described in described 8th another termination of resistance R8;
Described 7th resistance R7 other end ground connection;
Described bistable multivibrator (i.e. d type flip flop) pin Q connects described 9th resistance R9 one end;
4th switching tube Q4 pin one described in described 9th another termination of resistance;
Described 4th switching tube Q4 collector pin two meets described warning device BL;
Described 4th switching tube Q4 emitter pin 3 ground connection.
Based on above embodiment, as shown in Figure 3, be a kind of Intelligent bracelet structural representation that the embodiment of the present invention provides; This Intelligent bracelet comprises: high-voltage signal detection alarm circuit; This circuit comprises: antenna element, frequency selection network unit, trigger element and alarm unit;
Described antenna element, for receiving the external voltage signal in default sensing range, and sends to described frequency selection network unit by the described external voltage signal received;
Described frequency selection network unit, for filtering out preset high-pressure signal from the described external voltage signal received, and is sent to described trigger element by after described high-voltage signal process;
Described trigger element, for according to high-voltage signal after described process, sends trigger pip to described alarm unit;
Described alarm unit, for according to described trigger pip, initiates to report to the police.
It should be noted that, described frequency selection network unit comprises: the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the first electric capacity, the second electric capacity, the 3rd electric capacity, the first switching tube and second switch pipe;
The link of antenna element and described second resistance described in described first resistance one termination; The link of the first switching tube grid pin one and described first electric capacity described in described another termination of first resistance;
3rd resistance described in described another termination of second resistance and described second electric capacity link;
Described 3rd resistance other end ground connection;
Second electric capacity, the 3rd electric capacity and described second switch pipe emitter pin 3 link described in described another termination of first electric capacity;
Described 3rd electric capacity other end ground connection;
Described 4th resistance one termination power, the first switching tube drain pin 2 described in described 4th another termination of resistance;
Described first switching tube source electrode pin 3 connects described second switch pipe base stage pin one;
Described second switch pipe collector pin two connects described power supply and described trigger element link.
Also it should be noted that, described frequency selection network unit also comprises: regulate slide rheostat;
The link of second switch pipe emitter pin 3 described in termination, described first electric capacity, described second electric capacity and described 3rd electric capacity fixed by described adjustment slide rheostat one, another stiff end ground connection of described adjustment slide rheostat; Described adjustment slide rheostat regulates the link of second switch pipe emitter pin 3, described first electric capacity, described second electric capacity and described 3rd electric capacity described in termination.
Also it should be noted that, described trigger element, comprising: the 5th resistance, the 7th resistance, the 8th resistance, the 3rd switching tube and bistable multivibrator;
Power supply described in described 5th resistance one termination, the 3rd switching tube base stage pin one described in described 5th another termination of resistance;
Described 3rd switching tube emitter pin two connects described 8th resistance one end, and described 3rd switching tube collector pin 3 meets described 7th resistance and described bistable multivibrator pin D, described bistable multivibrator pin CP link;
Power supply described in described 8th another termination of resistance;
Described 7th resistance other end ground connection;
Described bistable multivibrator pin Q connects described alarm unit.
Also it should be noted that, described alarm unit comprises: the 9th resistance, the 4th switching tube and warning device;
Bistable multivibrator pin Q described in described 9th resistance one termination, the 4th switching tube base stage pin one described in described 9th another termination of resistance;
Described 4th switching tube collector pin two connects described warning device;
Described 4th switching tube emitter pin 3 ground connection.
Technical scheme of the present invention filters out preset high-pressure signal by frequency selection network unit from the described external voltage signal received, and be sent to described trigger element by after described high-voltage signal process, send trigger pip by trigger element and report to the police to alarm unit.Wherein, the bistable multivibrator that trigger element of the present invention adopts allows to trigger at CP to add input signal in a flash before coming, like this, the time that input end is disturbed shortens greatly, the possibility being disturbed wrong report just greatly reduces, make high-voltage signal detection alarm circuit anti-interference of the present invention stronger, work in actual working environment more stable, reliable; Due to the present invention's employing is devices at full hardware circuit design, and do not use programmable central processing unit to control, therefore cost is lower.
Based on above high-voltage signal detection alarm circuit and the Intelligent bracelet with this circuit, principle of work of the present invention is described in detail;
A kind of high-voltage signal detection alarm circuit that the embodiment of the present invention proposes and have the Intelligent bracelet of this circuit, effectively can carry out alarm for high voltage to the high-tension apparatus in default sensing range or electric wire, Keep Clear-High Voltage in prompting, prevents electric shock accidents from occurring.
To divide into described bistable multivibrator for edge D flip-flop, described first switching tube Q1 is MOS semiconductor field, second switch pipe Q2 adopts NPN type triode, 3rd switching tube Q3 is PNP type triode, 4th switching tube Q4 is NPN type triode, described 4th resistance R4, described 5th resistance R5 and described 9th resistance R9 is current-limiting resistance, presetting and detecting high-voltage signal is 220V, 50Hz signal, when being within 0.5 meter in the default sensing range of default detection, the principle of work with the Intelligent bracelet of high-voltage signal detection alarm circuit is as follows:
220V is had near the Intelligent bracelet with high-voltage signal detection alarm circuit, 50Hz high-tension electricity, and distance is when being 0.5 meter, antenna ANT will receive 220V, the mains frequency signal of 50Hz, this signal is through described first resistance R1, first electric capacity C1, second resistance R2, 3rd resistance R3, after 3rd electric capacity C3 and the second electric capacity C2 frequency-selecting, add to the grid of the first switching tube Q1, after the amplification of the first switching tube Q1 and second switch pipe Q2, make the 3rd switching tube Q3 saturation conduction, now, the clock pins CP of edge D flip-flop and data pins D becomes high level from low level, edge D flip-flop triggers, described edge D flip-flop pin Q exports high level, described 4th switching tube Q4 conducting, warning device (can think loudspeaker) BL starts working, point out high-tension electricity dangerous.
When there being high-voltage signal near described Intelligent bracelet is not felt, described 3rd switching tube Q3 not conducting, the clock pins CP of described edge D flip-flop and data pins D is low level, described edge D flip-flop does not work, described edge D flip-flop pin Q output low level, described 4th switching tube Q4 not conducting, loudspeaker BL does not sound.
It should be noted that, in described Intelligent bracelet, also include circuit debugging calibrated section; This debugging calibrated section can arrange sensing range by regulating slide rheostat R6, namely, second switch pipe Q2 emitter voltage V1 can be made to be set in by regulating slide rheostat R6 to make Intelligent bracelet near the live wire (phase line) about 0.5 meter of 220V or far away apart from 10,000 V hi-line 2 meters time, protection against electric shock Intelligent bracelet sends alarm sound.
The present invention forms the testing circuit to 200V, 50Hz high-voltage signal by low cost edge D flip-flop and antenna and frequency selection network, and simply, cost is lower in technology realization; Wherein, judge and report to the police to be completed by digital circuit edge D flip-flop due to final signal, the high-tension electricity testing circuit controlled relative to existing central processing unit and simulation judge that it is highly sensitive for high-tension electricity circuit, and it is fast that signal triggers reaction velocity; And allow to trigger at CP to add input signal in a flash before coming due to described edge D flip-flop, like this, the time that input end is disturbed shortens greatly, the possibility being disturbed wrong report just greatly reduces, so the circuit anti-interference of edge D flip-flop formation is stronger thus, work in actual working environment more stable, reliable; Also because the circuit of the present invention's design is devices at full hardware circuit, do not use programmable central processing unit to control, its cost is lower, and makes Intelligent bracelet be provided with the function detecting high-voltage signal fast.
The foregoing is only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.All any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., be all included in protection scope of the present invention.
Claims (10)
1. a high-voltage signal detection alarm circuit, is characterized in that, comprising: antenna element, frequency selection network unit, trigger element and alarm unit;
Described antenna element, for receiving the external voltage signal in default sensing range, and sends to described frequency selection network unit by the described external voltage signal received;
Described frequency selection network unit, for filtering out preset high-pressure signal from the described external voltage signal received, and is sent to described trigger element by after described high-voltage signal process;
Described trigger element, for according to high-voltage signal after described process, sends trigger pip to described alarm unit;
Described alarm unit, for according to described trigger pip, initiates to report to the police.
2. high-voltage signal detection alarm circuit according to claim 1, is characterized in that, described frequency selection network unit comprises: the first resistance, the second resistance, 3rd resistance, the 4th resistance, the first electric capacity, second electric capacity, the 3rd electric capacity, the first switching tube and second switch pipe;
The link of antenna element and described second resistance described in described first resistance one termination; The link of the first switching tube grid pin one and described first electric capacity described in described another termination of first resistance;
3rd resistance described in described another termination of second resistance and described second electric capacity link;
Described 3rd resistance other end ground connection;
Second electric capacity, the 3rd electric capacity and described second switch pipe emitter pin 3 link described in described another termination of first electric capacity;
Described 3rd electric capacity other end ground connection;
Described 4th resistance one termination power, the first switching tube drain pin 2 described in described 4th another termination of resistance;
Described first switching tube source electrode pin 3 connects described second switch pipe base stage pin one;
Described second switch pipe collector pin two connects described power supply and described trigger element link.
3. high-voltage signal detection alarm circuit according to claim 2, is characterized in that, described frequency selection network unit also comprises: regulate slide rheostat;
The link of second switch pipe emitter pin 3 described in termination, described first electric capacity, described second electric capacity and described 3rd electric capacity fixed by described adjustment slide rheostat one, another stiff end ground connection of described adjustment slide rheostat; Described adjustment slide rheostat regulates the link of second switch pipe emitter pin 3, described first electric capacity, described second electric capacity and described 3rd electric capacity described in termination.
4. the high-voltage signal detection alarm circuit according to Claims 2 or 3, it is characterized in that, described trigger element, comprising: the 5th resistance, the 7th resistance, the 8th resistance, the 3rd switching tube and bistable multivibrator;
Power supply described in described 5th resistance one termination, the 3rd switching tube base stage pin one described in described 5th another termination of resistance;
Described 3rd switching tube emitter pin two connects described 8th resistance one end, and described 3rd switching tube collector pin 3 meets described 7th resistance and described bistable multivibrator pin D, described bistable multivibrator pin CP link;
Power supply described in described 8th another termination of resistance;
Described 7th resistance other end ground connection;
Described bistable multivibrator pin Q connects described alarm unit.
5. high-voltage signal detection alarm circuit according to claim 3, it is characterized in that, described alarm unit comprises: the 9th resistance, the 4th switching tube and warning device;
Bistable multivibrator pin Q described in described 9th resistance one termination, the 4th switching tube base stage pin one described in described 9th another termination of resistance;
Described 4th switching tube collector pin two connects described warning device;
Described 4th switching tube emitter pin 3 ground connection.
6. an Intelligent bracelet, is characterized in that, comprising: high-voltage signal detection alarm circuit; This circuit comprises: antenna element, frequency selection network unit, trigger element and alarm unit;
Described antenna element, for receiving the external voltage signal in default sensing range, and sends to described frequency selection network unit by the described external voltage signal received;
Described frequency selection network unit, for filtering out preset high-pressure signal from the described external voltage signal received, and is sent to described trigger element by after described high-voltage signal process;
Described trigger element, for according to high-voltage signal after described process, sends trigger pip to described alarm unit;
Described alarm unit, for according to described trigger pip, initiates to report to the police.
7. Intelligent bracelet according to claim 6, is characterized in that, described frequency selection network unit comprises: the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the first electric capacity, the second electric capacity, the 3rd electric capacity, the first switching tube and second switch pipe;
The link of antenna element and described second resistance described in described first resistance one termination; The link of the first switching tube grid pin one and described first electric capacity described in described another termination of first resistance;
3rd resistance described in described another termination of second resistance and described second electric capacity link;
Described 3rd resistance other end ground connection;
Second electric capacity, the 3rd electric capacity and described second switch pipe emitter pin 3 link described in described another termination of first electric capacity;
Described 3rd electric capacity other end ground connection;
Described 4th resistance one termination power, the first switching tube drain pin 2 described in described 4th another termination of resistance;
Described first switching tube source electrode pin 3 connects described second switch pipe base stage pin one;
Described second switch pipe collector pin two connects described power supply and described trigger element link.
8. Intelligent bracelet according to claim 7, is characterized in that, described frequency selection network unit also comprises: regulate slide rheostat;
The link of second switch pipe emitter pin 3 described in termination, described first electric capacity, described second electric capacity and described 3rd electric capacity fixed by described adjustment slide rheostat one, another stiff end ground connection of described adjustment slide rheostat; Described adjustment slide rheostat regulates the link of second switch pipe emitter pin 3, described first electric capacity, described second electric capacity and described 3rd electric capacity described in termination.
9. the Intelligent bracelet according to claim 7 or 8, is characterized in that, described trigger element, comprising: the 5th resistance, the 7th resistance, the 8th resistance, the 3rd switching tube and bistable multivibrator;
Power supply described in described 5th resistance one termination, the 3rd switching tube base stage pin one described in described 5th another termination of resistance;
Described 3rd switching tube emitter pin two connects described 8th resistance one end, and described 3rd switching tube collector pin 3 meets described 7th resistance and described bistable multivibrator pin D, described bistable multivibrator pin CP link;
Power supply described in described 8th another termination of resistance;
Described 7th resistance other end ground connection;
Described bistable multivibrator pin Q connects described alarm unit.
10. Intelligent bracelet according to claim 9, is characterized in that, described alarm unit comprises: the 9th resistance, the 4th switching tube and warning device;
Bistable multivibrator pin Q described in described 9th resistance one termination, the 4th switching tube base stage pin one described in described 9th another termination of resistance;
Described 4th switching tube collector pin two connects described warning device;
Described 4th switching tube emitter pin 3 ground connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510459967.0A CN105044444A (en) | 2015-07-30 | 2015-07-30 | High-voltage electric signal detection and alarming circuit and intelligent wristband having same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510459967.0A CN105044444A (en) | 2015-07-30 | 2015-07-30 | High-voltage electric signal detection and alarming circuit and intelligent wristband having same |
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| CN105044444A true CN105044444A (en) | 2015-11-11 |
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| CN201510459967.0A Pending CN105044444A (en) | 2015-07-30 | 2015-07-30 | High-voltage electric signal detection and alarming circuit and intelligent wristband having same |
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| CN204884060U (en) * | 2015-06-04 | 2015-12-16 | 青岛歌尔声学科技有限公司 | Protection against electric shock warning circuit and intelligent bracelet that has protection against electric shock function |
| CN204989300U (en) * | 2015-07-30 | 2016-01-20 | 青岛歌尔声学科技有限公司 | High -tension electricity signal detection alarm circuit and have intelligent bracelet of this circuit |
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| CN204132513U (en) * | 2014-06-23 | 2015-02-04 | 长春师范大学 | Electric shock preventive helmet with voice alarm function |
| CN204884060U (en) * | 2015-06-04 | 2015-12-16 | 青岛歌尔声学科技有限公司 | Protection against electric shock warning circuit and intelligent bracelet that has protection against electric shock function |
| CN204989300U (en) * | 2015-07-30 | 2016-01-20 | 青岛歌尔声学科技有限公司 | High -tension electricity signal detection alarm circuit and have intelligent bracelet of this circuit |
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Application publication date: 20151111 |